Alice Roberts: Embracing Our Animal Nature – Understanding Humanity’s Roots

Posted on June 9, 2026 by Igor Mitreski

Physically, Homo sapiens may seem unremarkable in the animal kingdom. Yet, this species has ingeniously adapted to thrive across diverse habitats, from dense jungles to frigid arctic landscapes.

Alice Roberts, a remarkable figure in the realm of science, developed a keen passion for medicine, becoming both a surgeon and anatomist. Deeply intrigued by the evolutionary narratives of our primate relatives, she currently holds the position of Professor of Public Engagement in Science at the University of Birmingham, UK. Her expertise spans anthropology, archaeology, and paleopathology.

With an impressive portfolio in television, she has starred in shows such as Digging for Britain and Pompeii’s Lost Documents, and authored multiple books. Among them, Humans: Evolution of the Species, explores the journey of human evolution through captivating illustrations and worldwide contributions, including insights shared by Michael Marshall about her latest work.

Michael Marshall: What key insights does this latest installment of our evolutionary journey shed?

Alice Roberts: My time at the University of Bristol significantly shaped my perspective on humanity. While teaching anatomy to students, I constructed a dissection room within my veterinary school, where I had an eye-opening experience examining a lamb’s heart.

This moment allowed me to understand the heart’s evolution from fetus to adult form, prompting me to view humans as merely another mammal—a realization that transformed my perspective entirely.

How should we consider the implications of our bodies being results of evolutionary processes, and how does this history manifest in our skeletons and organs?

Inside our cells, biochemical processes trace back to the earliest single-celled organisms that once thrived in ancient oceans. Our limbs connect us to the first amphibians that ventured onto land approximately 360 million years ago. By studying changes in our arm bones, we can unravel the story of our evolutionary lineage. This exploration can apply to various parts of the human body.

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Arranging the skeletons of Homo floresiensis sent chills down my spine… so human, yet distinctly different.
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Can you provide examples of these similarities and distinctions?

I’ve often noted that if a medical student were presented with a female chimpanzee’s humerus, they might struggle to discern the difference. The size and shape of the bones closely resemble those of humans, retaining their functional capabilities. Upon closer examination, the similarities are intriguing, particularly in the structure of hands; human thumbs stand out as longer and thicker than those of chimpanzees.

It’s fascinating to hear paleoanthropologists confidently compare ape and human hands to classify Homo habilis. How do you view this?

Indeed, if chimpanzee hands closely resemble human hands, then examining other hominins becomes complex. Categorizing fossils can be challenging, especially when the record is incomplete. As someone passionate about data, I find the lack of clarity concerning categorization quite disconcerting.

Humans appear to possess a uniquely developed brain. How significant is this distinction?

The most distinguishing features of humans can be summarized succinctly: bipedalism, small teeth, and a large brain. While the correlation between larger brains and bipedalism is still under investigation, various theories abound. Some argue that the evolution of a larger brain coincided with bipedalism, while others suggest that enhanced cognitive functions arose as a result of the freedom provided by walking upright—allowing for tool use and expanded social networks.

Our body size is comparable to that of other great apes, yet the differentiation lies in the structure of our brains. Human brains not only exhibit greater size but also an intricate folding pattern that accommodates vast amounts of cortex. This distinction influences our interactions with the natural world around us.

The number of human species that existed alongside us has grown remarkably. How has this evolved our understanding of human evolution?

Initially, Neanderthals were the only known other group. Now, we recognize that they coexisted but were not our direct ancestors, as approximately 20 distinct hominin species have been identified, with new discoveries emerging each year.

My groundbreaking series from 2008, Incredible Human Journey, highlights this evolving narrative. During a visit to Indonesia, I encountered the fossil of Homo floresiensis—a shocking revelation that reshaped my comprehension of human ancestry.

“The Hobbit” – Original Homo floresiensis

Observing the skeletons of Homo floresiensis side by side was deeply impactful; their small skulls and brains still yielded evidence of stone tool use. This discovery contradicted the long-held belief that larger brains lead to tool-making capabilities, compelling me to reevaluate what it truly means to be human.

While Neanderthals and Denisovans vanished, our species endured. What accounts for our survival?

Unpacking this question requires probing tens of thousands of years of evolutionary history. Evidence suggests that modern humans possessed intricate social networks, allowing for enhanced resource distribution during hardships. This interconnectedness likely played a pivotal role in our survival.

Homo floresiensis had a small skull (top) and a small brain, yet still created stone tools

Tolo Balagar/Alamy

In the grand tapestry of evolution, will we see significant changes in the coming centuries?

Evolutionary changes are often catalyzed by drastic events, typically involving significant population declines, after which genetic diversity is crucial. In the near future, any observable changes in humans will likely pertain to immune responses rather than drastic physical transformations. We aren’t on the verge of growing additional limbs.

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It’s a contradiction in my mind. While I challenge the notion of human exceptionalism, I acknowledge our uniqueness.
“

A compelling and concerning aspect of our evolution lies in our capacity to manipulate our DNA. The ethical implications of this capability remain a significant question mark for our future.

Do your professional insights influence your fiction writing?

I’ve authored two children’s books set during the Ice Age, imagining the first encounters between modern humans and Neanderthals to invigorate history through storytelling. My debut adult novel, Queen of Goddesses, set for release in September, explores the saga of Cleopatra and Mark Antony, reflecting on the unpredictable nature of human history much like the complexities of evolution itself.

What is humanity’s relationship with nature? How should it evolve?

With billions of us on this planet, human culture indeed appears exceptional. Yet, if we adopt an evolutionary lens, we discern a lack of rigid separations between us and the rest of the natural world. Understanding our origins emphasizes that we are inherently connected to all species.

As we observe the impacts of our lifestyles on biodiversity, we must recognize our moral responsibility to mitigate our negative effects. Regardless of perceived separations from nature, we are deeply intertwined with it; our survival hangs in the balance of its preservation.

This is an edited version of a New Scientist video interview to be published on youtube.com/NewScientist on June 10th. Michael Marshall is a writer based in Devon, England.

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Source: www.newscientist.com

Why Superintelligent Machines Might Still Rely on Humans

Posted on June 9, 2026 by Igor Mitreski

In 1915, renowned physicist Albert Einstein presented his groundbreaking equations for the general theory of relativity to the Prussian Academy of Sciences. While Einstein now epitomizes genius, his revolutionary ideas were initially met with skepticism and indifference, primarily due to the complex mathematics that many of his contemporaries found challenging to grasp.

Today, many tech companies purport that we are approaching an era defined by “superintelligent” artificial intelligence (AI) that could exceed the capabilities of experts and lead to scientific advancements comparable to Einstein’s breakthroughs. As Dario Amodei, CEO of Anthropic, states: The land of data center geniuses. However, such claims often lack substantial evidence, and discerning true genius or superior intelligence remains a complex endeavor.

A significant area of concern within academia is the emerging role of AI in mathematics. In this week’s cover story, discover how mathematicians are expressing anxiety over AI’s rapidly growing mathematical prowess.

Interestingly, this anticipated future doesn’t entirely eliminate the necessity for human intellect. The efficacy of AI innovations underscores the vital role human mathematicians play in the scientific process. Groundbreaking discoveries facilitated by AI, including OpenAI’s recent validation of an 80-year-old hypothesis, gain legitimacy when mathematicians affirm their findings. We explore how humans are already leveraging AI insights to tackle various mathematical challenges.

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The success of AI shows how essential human mathematicians are to the scientific process.
“

If this trend extends to other scientific disciplines, it indicates that we may increasingly rely on individuals skilled in utilizing these AI tools rather than on AI itself. While this perception may differ from the superintelligence narrative favored by tech firms, it aligns more closely with the traditional understanding of human ingenuity.

Had it not been for visionary colleagues of Einstein, such as Karl Schwarzschild and Willem de Sitter, who further applied the theory of relativity in predicting elements like black holes and an inflationary universe, the impact of his findings on our comprehension of reality might not be as profound today. Hence, individual genius is rarely sufficient on its own.

Source: www.newscientist.com

Unlock Sleep Benefits Without Napping: Explore Effective Techniques

Posted on June 9, 2026 by Igor Mitreski

Experience the Benefits of Sleep While Awake

Walters Digital UG/Alamy

Imagine a time when you can enjoy the restorative benefits of sleep without actually falling asleep. Recent research involving awake mice has demonstrated that stimulating certain brain activities can mimic the benefits of deep sleep, including enhanced memory function.

“In theory, we might replicate these findings in humans,” says Vladislav Vyazovski from the University of Oxford, who was not part of the study. “Investigating the potential for artificially inducing this state during wakefulness could be fascinating.” This type of brain activity might lead to a feeling of refreshed energy while awake.

Sleep is crucial for the brain’s maintenance functions, such as synaptic homeostasis, which organizes the numerous neural connections formed throughout the day, reinforcing essential pathways while eliminating the unnecessary ones.

Non-rapid eye movement (NREM) sleep, which makes up about 80% of adult sleep, features repetitive signal firing from the brain’s cortex, shutting off certain neurons in a pattern known as slow-wave sleep activity. “This phenomenon is likely linked to synaptic homeostasis and may be key to sleep’s restorative capabilities,” explains Chiara Cirelli from the University of Wisconsin-Madison.

Cirelli and her team pondered whether it might be feasible to induce a section of the cerebral cortex into a deep sleep state while keeping a person awake. Certain animals like dolphins and fur seals utilize a similar tactic, allowing half of their brains to enter NREM sleep while remaining vigilant.

To explore this possibility, the researchers genetically altered mice to control neural activity using light. They inserted a probe into part of the mice’s brains and kept them engaged for five hours with various stimuli. At the end of this duration, a light probe was activated to simulate non-REM sleep for 30 minutes.

After putting the mice to sleep, brain recordings revealed that the stimulated region of the brain did not exhibit typical signs of fatigue associated with sleep deprivation. “Essentially, a portion of the brain cleansed itself while awake, minimizing the need for restorative deep sleep later,” says Cirelli.

The researchers then explored whether artificially induced sleep during wakefulness could enhance memory. They placed the genetically modified mice in a box with identical carpet textures on both sides. After allowing them to explore for 15 minutes, the mice were divided into groups: one for sleep, one for no sleep, and one that received the artificial deep sleep stimulus.

The next day, when reintroduced to the box, one side contained a new texture. As mice are naturally curious, their time spent in the newly textured area indicated their memory of the original environment. The results showed that while uninhibited, sleep-deprived mice had difficulty distinguishing between the two sides, both the sleep group and the stimulated sleep group spent significantly more time in the new area.

The research team intends to examine whether similar benefits can be achieved in humans through non-invasive brain activity stimulation techniques such as transcranial electrical stimulation. However, Vyazovski cautions against the idea that sleep can be fully replaced. “We recognize two sleep types: NREM and REM,” he notes, emphasizing that our understanding of the transition between these two states and the completion of sleep remains limited.

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Source: www.newscientist.com

Can Apple and Google Prevent Kids from Sharing Explicit Images?

Posted on June 9, 2026 by Igor Mitreski

The UK urges tech companies to strengthen protections against explicit image sharing by minors.

martin-dm/Getty Images

Children protected from explicit content — The UK urges tech companies to strengthen protections against explicit image sharing by minors.

martin-dm/Getty Images

Technology companies must act within three months to prohibit children in the UK from creating or sharing explicit images on their devices, or they may face regulatory measures.

In a statement, Prime Minister Keir Starmer emphasized the urgency: “I am calling on technology companies operating in this country to implement regulations that prevent children from sending or receiving sexually explicit images.” During his speech on June 8th, he stated, “This challenge is not insurmountable. Failure to comply will result in legal changes.”

Prominent smartphone developers, Apple and Google, have already implemented partial measures. Apple’s iOS includes a “Sensitive Content Alert,” which detects and blurs nudity in images or videos sent or received through its messaging and AirDrop services. This feature, which is enabled by default for child accounts, utilizes on-device machine learning to assess whether images contain nudity at the point of transmission.

Similarly, Google provides a feature in its Android OS called Sensitive Content Warning, which is also powered by on-device machine learning and defaults to “on” for child accounts when images are sent via Google Messages, though it does not apply to video content.

Both functionalities differ from the image hash list maintained by the Internet Watch Foundation (IWF), which tracks the digital fingerprints of known images of child abuse, aiming to stop their sharing across websites and social media platforms.

However, expanding these measures to cover third-party applications like WhatsApp, Instagram, Signal, and X poses significant challenges, as these platforms operate independently of the Android and iOS ecosystems. Additionally, ensuring children’s exclusive use of child accounts remains a concern; currently, both Google and Apple require active parental involvement for setup, which isn’t a default setting.

Moreover, Apple’s current content warning system may only function on devices updated to iOS 17 or later, with about 10% of devices around the world not meeting this requirement. Similarly, Google’s equivalent features are restricted to devices running Android 9 and above, impacting around 5 percent of global devices. While specific statistics for the UK are unavailable, millions of devices could be affected.

The UK government is pushing for Apple and Google to broaden their nudity detection systems to include mobile cameras and third-party applications, limiting explicit image sharing unless users verify their age, akin to mechanisms in place for adult websites since the enactment of the Online Safety Act in July 2025.

Nonetheless, the reliability of such verification systems has drawn skepticism, with frequent reports of children bypassing safeguards. “Current age verification methods largely struggle to restrict young people from accessing adult content,” states Liam McLoughlin from Edge Hill University, UK.

The potential for misuse of technology raises additional concerns, including unintentional barriers to educational and medical information and fostering negative body image issues, warns Julian Hayes, a data protection lawyer at UK’s BCL Solicitors. “To combat online harm, we must empower children and youths with safe online practices, provide meaningful sex education, and embody good online behavior ourselves,” he advocates.

“This approach is heavily reliant on technology solutions, ultimately placing excessive power in the hands of tech companies,” remarks Carolina Are from the London School of Economics. “While it aims for headlines, enforcing these measures will be significantly challenging.”

Apple did not respond to a request for comment by the time of publication. A Google spokesperson assured New Scientist: “Google is deeply committed to safeguarding children’s online experiences. We are collaborating with our UK partners to develop effective, privacy-centric solutions that mitigate the spread of harmful content, ensuring a secure digital environment for youth.”

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Source: www.newscientist.com

How Solar Farms on Restored Peatland Enhance Wildlife Habitat

Posted on June 9, 2026 by Igor Mitreski

Meadow Pipit in a Solar Park on Peatland in Northern Germany

Watt Manufacturer

Meadow Pipit in a solar park in northern Germany — Meadow Pipit in a Solar Park on Peatland in Northern Germany

Watt Manufacturer

Solar farms established on rewetted peatlands host a greater diversity of bird species compared to adjacent dry farmlands. This indicates that renewable energy sites can be advantageous for landowners, helping to sequester carbon while simultaneously boosting biodiversity.

Peatlands are recognized as the largest carbon reservoirs on earth, containing twice the carbon of all global forests. Yet, extensive peatland areas are drained for agriculture or mined for horticultural materials. In Germany, 95% of peatlands are degraded, while 80% of these ecologically vital areas are similarly compromised in the UK.

When peatlands are drained via ditches or pumps, microorganisms initiate the decomposition of the ancient carbon stored in these ecosystems, releasing carbon dioxide over extended periods.

A German state-funded research initiative is currently exploring the potential of solar farms to accelerate peatland restoration.

“We can’t merely resort to conservation strategies,” explains Hannah Ray Martens, who conducted research at the University of Greifswald in Germany. “Numerous individuals depend on this land for their livelihood.”

At the study location, the solar energy firm Watt Manufacturing began constructing a sand and gravel road in 2020, which obstructed the drainage ditches’ flow, permitting water to accumulate on farmland and gradually return to the peatland.

Mertens notes that this research is the first to assess the impact of solar installations on rewetted peatlands, revealing positive outcomes for biodiversity.

“The prevailing concern is habitat destruction; however, this does not apply here,” she states. “New habitats have emerged for various species, including endangered and wetland species, thereby enhancing overall landscape biodiversity.”

The species richness observed in the 30-hectare solar park is comparable to that found in two nearby fields regularly harvested for hay. However, audio recorders revealed that the solar park is inhabited by both wetland and woodland bird species, while the hayfield was dominated by grassland birds, such as the European goldfinch.

Wetland species, including the white wagtail, great bunting, and blue heron, were recorded at the solar park, alongside forest inhabitants like the sparrow and buzzard. The solar panels were seen to replace shrubs and small trees, with birds such as buzzards and kestrels perching on them to hunt for rodents in the grass below.

The research team also documented a meadow pipit, a small brown-striped species that is endangered in Germany, perched on one of the panels.

Mr. Mertens suggests that rewetting peatlands, utilizing solar panels as perches, and limiting mowing have contributed to attracting various bird species. However, further studies are needed to compare the biodiversity of these solar-augmented peatlands against rewetted peatlands without solar development, according to Katherine Waite from Cambridge University.

“Peat Land PV” [photovoltaics]… could present a highly effective method to revitalize severely degraded agricultural peatlands, although its applicability should not extend to healthy peatlands elsewhere,” she cautions.

Despite the UK restoring approximately 2,500 square kilometers of peatland—a mere one-tenth of the total degraded area—Germany has restored even fewer peatlands. The ongoing emissions from drained peatlands persist for many years; therefore, several of the 165 solar power plants installed on degraded peatlands in Germany are inadvertently emitting more greenhouse gases than the carbon-free energy they generate.

In contrast to agricultural energy production, which maintains grazing and crop cultivation surrounding solar installations, peatland solar energy currently only generates revenue through electricity sales. The Watt Manufacturer Solar Park is one of only five projects located on wet peatlands. Solar developers often face increased expenses because they must install deeper foundations and wait for the summer dry season to commence construction.

Since 2023, Germany has prohibited solar facilities on degraded peatlands from receiving guaranteed minimum electricity pricing, although developers do not always have to disclose whether their projects are situated on drained peatlands.

Waite believes additional government incentives will be pivotal for the growth of peatland solar initiatives. “To tackle both global warming and the biodiversity crisis, alongside our food production needs, we must manage land sustainably to yield multiple benefits,” she asserts. “A win-win scenario is essential.”

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Source: www.newscientist.com

Understanding Normal Memory Decline: When to Seek Help

Posted on June 8, 2026 by Igor Mitreski

We All Experience Moments of Forgetfulness

Craig Bolan

New Scientist: Your source for science news and expert articles covering developments in science, technology, health, and the environment. — We All Experience Moments of Forgetfulness

Craig Bolan

We’ve all experienced the peculiar moments of forgetfulness, like going upstairs and completely forgetting why. Or perhaps you’ve left an acquaintance’s name blank during introductions, or even found your car keys in the refrigerator!

While such temporary memory lapses can be unnerving, they are a normal part of aging. According to Ullmann Lindenberger, a cognitive neuroscientist at the Max Planck Institute for Human Development in Berlin, “The decline in episodic memory—knowing what happened, where, and when—is a typical aspect of cognitive aging.” He notes that most adults start to see a decline by age 60, impacting all memory stages from encoding new information to retrieval.

This memory decline is largely due to structural and functional changes in the brain that begin in midlife and accelerate with age. A 2025 study examined over 3,700 cognitively healthy adults and found that age-related memory decline correlates with reduced connectivity between brain regions. This diminishes as the fatty insulating layer around neurons degrades, and as the hippocampus—a critical area for new memory formation—shrinks.

However, Lindenberger emphasizes there’s no need for alarm. “Both learning and episodic memory involve creating and recalling associations, and these brain processes become less reliable as we age.”

It’s also worth noting that most everyday memory issues can stem from a lack of attention. If you are distracted or stressed, your brain may not properly encode where you placed your keys, making retrieval difficult later.

It can be challenging to determine when these typical memory slowdowns signal something more concerning.

Neurologists observe that forgetfulness becomes problematic when it disrupts daily life—like forgetting significant dates or appointments. Dr. Ronald Petersen from the Mayo Clinic notes, “You should be cautious when forgetting essential information or when those around you start noticing these lapses.” Signs to watch for include repeating oneself or consistently forgetting information that once seemed easy to recall.

The act of repetition can be a crucial sign of declining memory function, particularly in early stages of mild cognitive impairment and dementia, like Alzheimer’s. In these cases, changes in the hippocampus and entorhinal cortex hinder the formation of new episodic memories. If someone continuously asks the same questions, it might indicate that their memory of the initial inquiry hasn’t solidified—potentially signaling a red flag.

Cognitive concerns can arise from various factors, including stress, depression, hormonal changes, and medication side effects, leading to temporary lapses in attention and memory. Therefore, it’s vital to assess what might be contributing to cognitive impairment symptoms. Research indicates that older adults who worry about dementia tend to misinterpret everyday forgetfulness as signs of cognitive decline, which can lead to negative health outcomes.

Ultimately, even neurologists grapple with distinguishing “normal” aging from concerning memory loss. For most individuals, it’s crucial to remain calm. As Lindenberger advises, “Be concerned if memory deteriorates quickly and begins to interfere with daily life.”

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Source: www.newscientist.com

Unveiling the Truth: The Migration of Ancient Humans from Africa Explained

Posted on June 8, 2026 by Igor Mitreski

Migration from Africa: A Complex Journey

Christian Jegou/Science Photo Library

Migration from Africa: A Complex Journey

Christian Jegou/Science Photo Library

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The Great Migration out of Africa is a cornerstone of human evolutionary history. Our species emerged in Africa, became dominant, and spread across all continents—except Antarctica—around 60,000 years ago.

Genetic studies reinforce this narrative. African populations showcase significantly more genetic diversity than any other continent. While Europeans, Japanese, Indigenous Australians, and Native Americans may exhibit distinct physical traits, they share surprising genetic similarities. Even neighboring African groups can be genetically more diverse. This suggests that our species originated in Africa, where those who migrated beyond carried only a fraction of this genetic richness, shaping all non-African populations today.

I highlight this to underscore two crucial facts: migration out of Africa occurred, and it has profoundly impacted our species.

However, let’s reconsider the narrative. Events outside Africa may have transpired differently than previously imagined.

Archaeological Insights and Molecular Evidence

In recent years, confusion has grown regarding the specifics of the mass migration from Africa. Archaeologist Hugh Gourcutt of The University of Malta has approached this systematically. On April 15th, he presented a study in Quaternary Science Review, outlining his concerns regarding the accepted narrative.

Groucutt’s first point is that archaeological evidence does not align with genetic data. He states, “While genomic data implies successful dispersal into Asia, compelling archaeological evidence linking Africa and Eurasia during that period is lacking.” In essence, if numerous Homo sapiens migrated from Africa to Eurasia approximately 60,000 years ago, artifacts corroborating this movement should be present, yet none are found.

Furthermore, Groucutt identifies two interconnected challenges: determining precise timelines for archaeological events and a historical fixation on “revolutions” that clouds our understanding.

Consider the dating issue. The timing of large-scale migration from Africa vastly varies among genetic analyses. Some suggest it occurred around 56,000 years ago, while others estimate “less than 55,000 years ago“, and even “50,300 to 59,400 years ago” or “before 75,000 years ago“. Such a broad range for a relatively recent event (geologically speaking) raises significant uncertainty.

Groucutt argues that efforts to date migrations may be overly ambitious, often relying on biased models that oversimplify raw genetic data. “The reality is that we lack a comprehensive understanding of how ancient populations spread and interacted,” he asserts. “Models heavily influence the results.”

Reconstructed Skull of an Early Denisovan

Gary Todd (CC0)

For instance, genetic models often presume random interbreeding among populations, a notion proven false. Human populations tend to cluster, with mates chosen from nearby individuals or those sharing cultural or social traits. Additionally, early African populations fragmented over time, and the dynamics of this fragmentation remain only partially understood. “It’s challenging to model these interactions,” Groucutt notes.

It’s important to recognize the tendency to categorize intergroup divisions as clearly defined events. This reflects in the human family tree and terminology such as “divisions.” My previous discussions of Ancestor X, the last common ancestor of humans, Neanderthals, and Denisovans, can create an impression of abrupt splits at specific times and places.

While some separations can be abrupt—like a flood sweeping a population—others may occur gradually over centuries, with periods of contact and separation. Such may be the case with migration from Africa: not a singular large-scale exodus, but numerous smaller migrations over thousands of years, lacking a centralized plan or objective.

Hence, Groucutt proposes a more extensive timeframe for migration outside Africa. Rather than claiming it occurred strictly around 60,000 years ago, we should assert it transpired between 100,000 and 50,000 years ago.

This leads to another notion: a persistent search for discrete “events” or “revolutions” in prehistory.

Revolutionizing Our Understanding of Prehistory

Hand Paintings in Sumpang Bita Cave, Indonesia

Nature Picture Library / Alamy

Researchers have long sought to pinpoint dramatic shifts in prehistory. These “revolutions” signify rapid, significant changes thought to originate in specific locations and then spread globally.

For instance, the idea that our species became “behaviorally modern” around 50,000 years ago implies that we began making specialized tools, creating art, conducting rituals, and possibly developing real languages. This was termed the “Upper Paleolithic revolution.” However, such assertions are increasingly contested. Archaeological evidence suggests that these behaviors arose gradually, possibly developing independently in various regions. Furthermore, Neanderthals likely engaged in artistic expression as well.

The notion of revolutions was prevalent in the 20th century, with archaeologist V. Gordon Childe characterizing the emergence of agriculture as the “Neolithic Revolution,” soon followed by an “urban revolution” defined by the rise of increasingly dense settlements. Yet, these oversimplified classifications mask the complexities of human behavior throughout history.

Groucutt asserts that the “revolution” narrative continues to affect genetic interpretations today. He remarks, “People often speak of ‘happenings’ outside of Africa.” Conversely, the migration was likely composed of “small groups scattered across vast landscapes over tens of thousands of years.” In his view, this process was not a singular “event,” but rather a prolonged span involving groups leaving Africa, sometimes returning with valuable information.

While previous migratory patterns may have been sporadic, they still occurred. Evidence suggests modern humans inhabited the sites of Shuhur and Qafzeh in Israel as early as 130,000 years ago, with earlier claims from Misriyah in Israel and Apidima in Greece, albeit dating controversies persist.

Genetics indicates that only late migrations after 100,000 years ago played a role in shaping modern non-African populations. Earlier migrants left no distinguishable genetic legacy, although they may have influenced genetics indirectly via interbreeding with Neanderthals.

This enduring belief in “revolutions” may reflect deep-seated biases in our storytelling. Narratives are often characterized by dramatic turns and climaxes, making them memorable. However, it’s crucial to appreciate that foundational elements steadily contribute to these climactic moments, underscoring the importance of gradual processes in history.

Explore the Cradle of Humanity: South Africa

Join us for an immersive experience in the Cradle of Humanity, engaging in real fossil excavations, expert-led research, and visits to iconic paleoanthropological sites.

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Source: www.newscientist.com

Why You Shouldn’t Worry About AI’s Self-Improvement Capabilities

Posted on June 8, 2026 by Igor Mitreski

AI That Builds Better AI Could Transform the Future

Just_Super/Getty Images

AI technology evolution — AI That Builds Better AI Could Transform the Future

Just_Super/Getty Images

One of the foremost artificial intelligence companies is urging the industry to halt ongoing AI development, suggesting we might be approaching a pivotal moment where advanced models could redesign themselves, enhance capabilities, and potentially elude our oversight. This alarming notion was recently highlighted in headlines.

The co-founder of Anthropic, Jack Clark, is leading critical discussions at the Institute for Anthropology. Alongside Marina Favaro, they provided crucial insights in a detailed blog post, coinciding with the company’s anticipated $1 trillion initial public offering (IPO). They recently upgraded their Claude model.

Setting aside the substantial economic implications, let’s delve into the technical assertions. The capability for an AI to design superior iterations of itself could indeed be groundbreaking. However, this concept isn’t entirely new; Anthropic terms it “recursive self-improvement,” a notion that has long been associated with the idea of “singularity”—the moment when AI surpasses human intelligence.

It’s uncertain whether we are genuinely closer to achieving this milestone. The current pace of AI research is impressive, yet history shows that rapid advancements can lead to periods of stagnation—known as AI winters—where progress becomes as challenging as securing funding. Even Clark and Favaro concede in their blog post that recursive self-improvement is an eventuality.

Recently, I addressed how open-source developers are grappling with excessive AI-generated “garbage” code that either malfunctions or misdirects projects. On social media, some Instagram accounts have gained popularity by showcasing AI failing at basic tasks. For instance, in a typical video, a user asks ChatGPT to negotiate the price of bread, capping it at $5. Yet, the AI confidently proposes a deal at $400—hardly indicative of a tool prepared to generate sentient descendants.

This isn’t to imply that AI lacks utility, nor am I dismissing its potential. I find myself straddling two perspectives, experiencing cognitive dissonance. We marvel at what relatively simple algorithms, extensive training data, and powerful computational resources can achieve, yet harbor doubts about their reliability in managing even the most trivial tasks—at least for the time being.

For AI to accelerate towards a singularity-like state, two conditions must be met. First, we need to tackle a relatively straightforward engineering challenge: can we optimize our code to enhance efficiency, accelerate model training, and scale our advancements further? Second, we require groundbreaking ideas. Can we innovate new architectures and strategies that can radically elevate progress and shift us beyond the current paradigm of merely enlarging models?

Anthropic has suggested that the human role in both domains may diminish, leading to a point where AI can strategize and code more effectively than humans, prompting a reduction in human involvement. Yet, the truth remains that we are still uncertain about whether AI will continue to evolve, if we are nearing a performance threshold, or if there exists a breakthrough that can facilitate further progress. The landscape of AI research is filled with more unknowns than certainties.

Returning to the topic of IPOs, optimism pervades the AI industry, and with good reason. The stakeholders are directing their interests, with their careers and investments on the line. Companies such as Anthropic, OpenAI, and SpaceX (which has recently acquired Elon Musk’s xAI) are eyeing unprecedented public funding. This environment may heighten the hype, even beyond current levels. Given the recent surge in AI development, the message appears strikingly effective: “No, we are not creating machines to enslave humanity. Just invest in us.”

It’s important to note that Anthropic isn’t outright calling for a pause in research activity. Rather, they argue that if the industry operates concurrently and the “bad actors” are prevented from gaining a head start, a slowdown might be beneficial. However, with trillions of dollars in potential revenues, achieving consensus among major AI entities seems like an exceptionally challenging task.

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Source: www.newscientist.com

How Endometriosis Impacts Areas Beyond the Pelvis After Surgical Removal

Posted on June 8, 2026 by Igor Mitreski

Light micrograph of a cross-section of an ovary revealing cysts caused by endometriosis

Science Photo Library

Recent extensive research into the biology of endometriosis has revealed novel mechanisms through which this chronic condition significantly impacts women’s health, paving the way for enhanced treatment options. This landmark study analyzed data from over 1 million women and identified specific genes linked to endometriosis among individuals of African descent, a group historically underrepresented in previous research.

According to Shefali Setia Verma from the University of Pennsylvania, “We identified approximately 300 genes that warrant further investigation in this field.”

Understanding Endometriosis: Endometriosis is a chronic and often debilitating condition characterized by the growth of tissue similar to the endometrium in locations outside the uterus, forming painful lesions. It affects approximately 10% of women of reproductive age, often leading to symptoms such as fatigue, severe pain, and fertility issues. Furthermore, endometriosis has been linked to cardiovascular diseases, although the underlying biological mechanisms remain inadequately understood.

To address this, Setia-Verma and her team employed a “multi-omics” approach, combining analyses of genes, proteins, microbiomes, and symptoms associated with endometriosis to create a comprehensive understanding of the condition. The researchers examined data from 14 global biobanks, compiling information from over 1 million women.

The team’s initial analysis uncovered 58 genomic regions related to endometriosis, with 27 of these being previously unidentified. Detailed scrutiny led to the identification of 314 genes associated with the disorder. Notably, this study highlighted three genetic regions linked to endometriosis detectable solely in individuals with African ancestry.

Among the most strongly associated genes, many were found to be involved in immune response, inflammation, and cellular motility. This is particularly significant as endometriosis involves cells growing inappropriately, suggesting the condition may relate to the biological processes governing cell migration rather than just misplaced tissue growth. “This insight may lead to the development of treatments targeting cell movement,” adds Setia Verma.

The association with inflammation and immune response may also clarify why endometriosis affects broader health issues, including cardiovascular disease, arthritis, and depression. Persistent inflammation going untreated can result in various long-term complications. In the UK, for example, the average time for a diagnosis is 9 years. Dr. Setia Verma stresses, “Untreated pain and inflammation can lead to a range of chronic symptoms.”

The insights from this study have crucial implications for treatment approaches. Current therapies for endometriosis predominantly target hormonal pathways since estrogen can stimulate lesion growth and associated inflammation. However, if inflammation is a principal factor in symptomatology and broader health concerns, addressing these inflammatory pathways may provide a more effective therapeutic strategy, according to Setia Verma.

The researchers discovered links between specific genes and proteins related to endometriosis, cardiovascular disease, and the regulation of blood cholesterol and fats. “This essentially indicates an increased cardiovascular disease risk for individuals with endometriosis,” remarks Setia Verma.

Another insightful finding was that individuals with endometriosis often exhibit reduced levels of Bifidobacteria, beneficial bacteria crucial for gut health and immune system support. “This sheds light on how endometriosis contributes to broader systemic health risks beyond reproductive issues,” states Setia Verma. This warrants further exploration into the role of Bifidobacteriaceae as a potential target for innovative therapies.

The strength of this study lies in its diverse participant demographic. Nilfel Ramioglu from Oxford University notes, “Most endometriosis research has focused on individuals of European descent, which limits the applicability of findings and exacerbates inequalities in women’s health research.” Ramioglu emphasizes that these efforts signify vital progress toward inclusive advancements in endometriosis research. However, additional research is essential for drawing definitive conclusions. As she asserts, “While this kind of study identifies biological pathways needing exploration, further validation is necessary to establish whether targeting these pathways leads to improved patient outcomes.”

Source: www.newscientist.com

Projected Soil Clogging: 50% of Global Reservoirs at Risk by 2060

Posted on June 8, 2026 by Igor Mitreski

China’s Sanmenxia Reservoir is regularly flushed of accumulated sediment.

Imago/Alamy

By 2060, more than half of the world’s freshwater reservoirs are predicted to be “functionally dead” due to sediment accumulation, according to a comprehensive study.

Dams obstruct the flow of silt, sand, and gravel downstream, leading to the gradual buildup of these materials in reservoirs, which reduces available water space. Excessive sediment capture poses safety risks to dams and adversely affects downstream ecosystems.

Kai Liu and researchers from the Chinese Academy of Sciences in Nanjing utilized satellite imagery, sediment data, and machine learning to assess over 550,000 reservoirs globally.

They revealed a staggering loss of over 36 cubic kilometers of water annually from sedimentation, a volume comparable to that of China’s monumental Three Gorges Dam.

A reservoir is deemed “functionally dead” when more than half of its capacity is filled with sediment.

Countries like Australia and Spain are anticipated to experience the most severe impacts, with nearly 85% of Australia’s reservoirs and three-quarters of Spain’s projected to reach their operational limits by 2060.

In arid regions, nearly 75% of reservoirs may become functionally dead by the same year, whereas half of the reservoirs in wetlands could cease to function. Alarmingly, over 99% of dams in Namibia and nearly 96% along Australia’s west coast are at significant risk.

Liu et al. estimate that the world loses over 7% of its freshwater storage capacity every decade, threatening over 25% of the world’s irrigated lands and water supplies for over 2 billion people.

To combat this pressing issue, the research team advocates for strategies such as upstream tree planting, land stabilization, and erosion control to mitigate sediment input into reservoirs. They also highlight the necessity for engineering interventions like dredging and bypass tunnels, with an estimated cost of up to $100 billion.

Ian Wright, a professor at Western Sydney University who was not involved in this study, noted some “highly contradictory” findings, particularly since climate change is likely to elevate sediment deposition rates due to increased rainfall. He emphasizes the challenge presented by the growing global water demands.

“Sedimentation acts like a cancer that gradually diminishes reservoir capacity,” Wright warns, highlighting Australia’s vulnerability to this issue. He explains, “Our soils are fragile. Removing catchment vegetation exposes them to heightened erosion, leading to continuous sediment flow into storage dams.”

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Source: www.newscientist.com

Earth Scientists Uncover Massive Fan-Shaped Structure Hidden Beneath Antarctic Ice

Posted on June 8, 2026 by Igor Mitreski

Researchers from Italy, Switzerland, Germany, and the UK have made a groundbreaking discovery by integrating seismic, gravity, and topographic data. They found that numerous prominent subglacial basins in East Antarctica belong to a singular fan-shaped geological province that traces its origins back to ancient continental expansion.

A structural frame interpreted as a fault-controlled basin in the newly identified East Antarctic fan basin. Image credit: Armadillo et al., doi: 10.1038/s41561-026-01991-6.

“The Antarctic bedrock is largely uncovered by the Antarctic Ice Sheet, which covers over 99% of the continent,” stated lead author Dr. Egidio Armadillo of the University of Genoa and his colleagues.

“Recent international efforts utilizing radio-echo sounding data have uncovered vast subglacial topographic features with increasing clarity, highlighting a significant, low-elevation region of East Antarctica that stretches from Prydz Bay to the Transantarctic Mountains and extends inland to 85 degrees south latitude.”

“In this area, most large subglacial basins exhibit a V-shaped profile and are oriented in a north-south direction.”

“Additionally, the 2,000 km long Antarctic coastline and the continent-ocean boundary limit the northern sector, presenting a distinct semi-circular arc shape.”

“On a semi-continental scale, the landscape resembles a handheld fan, with a concentration near the South Pole.”

“We propose that this entire geographical region constitutes a single geographic unit, naming it the East Antarctic Fan Basin (EAFBP).”

The EAFBP includes some of Antarctica’s most significant subglacial features, notably the Wilkes Basin and the Aurora Basin, which houses Lake Vostok, the largest known subglacial lake on Earth.

Analysis indicates that this structure formed through a process known as dispersive rotational extension.

This mechanism describes how continental crust expands from a central point, producing a fan-like pattern akin to a hand with the thumb as a fixed point while the fingers splay and elongate.

The gaps between the fingers symbolize triangular basins formed as the structure opens.

Scientists suggest that the EAFBP may represent one of the most extensive examples of rotational extension documented in continental crust.

This phenomenon likely evolved through multiple tectonic events linked to the development of the Gondwana supercontinent and the subsequent separation of Antarctica and Australia, potentially influencing these separations.

The discovery prompts further investigation into the structure’s age and the geodynamic processes responsible for its formation.

Moreover, its implications extend beyond historical context.

“The bedrock shape concealed beneath the ice sheet continuously impacts ice flow today, regulating the distribution of subglacial basins and lakes,” the authors emphasized.

“This may also affect the stability of segments of the Antarctic ice sheet that are particularly vulnerable to climate change.”

For further details, refer to the study published in the June 3rd issue of Nature Earth Science.

_____

E. Armadillo et al. A fan-shaped subglacial basin province in East Antarctica formed by rotational extension. Nature Earth Science published online on June 3, 2026. doi: 10.1038/s41561-026-01991-6

Source: www.sci.news

Stunning VST Image Captures Two Glowing Nebulae Revealing Cosmic Pareidolia

Posted on June 8, 2026 by Igor Mitreski

Astronomers at ESO’s VLT Surveying Telescope have unveiled captivating images of two lesser-known nebulae: Gum 10 and Gum 11.

This VST image showcases nebulae Gum 10 and Gum 11, located south of the constellation Papis. Image credit: ESO / VPHAS+ Team.

“What shapes do you perceive? Could it be a chicken searching for seeds, a dragon’s head, or something entirely different?” queried ESO astronomers in a statement.

“These fascinating cloud formations, creating intriguing pareidolia, belong to the nebulae known as Gum 10 and Gum 11—vast collections of interstellar dust and gas.”

“Primarily observable from the Southern Hemisphere, these nebulae are part of a larger complex where stars are born.”

Located approximately 10,760 light-years away in the constellation Leo, Gum 10 is also referred to as RCW 19, spanning around 155 light-years in diameter.

Gum 11, also known as NGC 2579, is about 4,000 light-years away within the same southern constellation.

“Gum 10 appears as the brightest cloud dominating most of the image,” said the astronomers.

“In contrast, Gum 11 is a fainter, more isolated cloud located in the lower left section of the image.”

The mesmerizing images of these nebulae were captured by the VLT Surveying Telescope (VST), commemorating its 15th anniversary of First Light.

“The vibrant glow of these nebulae arises from unique interactions between hydrogen and the hot, massive stars within these regions,” the researchers explained.

“These stars emit ultraviolet light, possessing enough energy to strip electrons from atoms, ultimately forming ions.”

“Recombination of these electrons with hydrogen ions results in the distinctive red light emission observed in the images.”

“The dark lines seen in the nebula are caused by dust obstructing light from distant stars.”

Source: www.sci.news

Impact of Lithium Mining on Local Water Sources – Insights from Sciworthy

Posted on June 8, 2026 by Igor Mitreski

Electric vehicles and various clean energy technologies are powered by metal-based batteries known as
lithium
. The rising demand for lithium has turned lithium mining into a booming industry. This vital resource is predominantly found in volcanic formations called
pegmatite
. Ongoing research aims to determine the carbon and water consumption in pegmatite mining, but the impact on local water quality remains uncertain.

Mining pegmatites not only yields lithium but also other trace metals like rubidium and cesium. While the environmental effects and potential human toxicity of these trace metals are not well documented, the EPA has associated elevated lithium levels with detrimental health risks, including kidney dysfunction, impaired neurodevelopment, and thyroid issues. Currently, no safe threshold for lithium in drinking water has been established, although the
United States Geological Survey
suggests a preliminary safe level of 10 micrograms per liter (μg/L).

Researchers at Duke University recently investigated how pegmatite mining affects lithium concentrations in nearby water sources and the duration of these effects post-mining. Their study involved measuring metal concentrations in water downstream of two lithium mines and a connected processing plant. The researchers hypothesized that mining activities could alter the interactions between the rock and surrounding water, thereby influencing lithium levels.

The team collected 99 water samples from surface streams and 93 samples from groundwater wells in a 40-kilometer (25-mile) stretch along the South Carolina-North Carolina border, particularly near the Kings Mountain and Holman Beam lithium mines. They compared 51 surface water samples collected upstream of the mines to 48 samples taken downstream that were influenced by mining activities.

Using an
inductively coupled plasma mass spectrometer
, the researchers measured lithium alongside trace elements such as rubidium, cesium, arsenic, and strontium. Their findings revealed that lithium concentrations in surface water skyrocketed from baseline levels of 0.2 μg/L to between 785 and 1,249 μg/L within 10 kilometers (6.2 miles) of mines. Groundwater wells showed lithium levels between 4,500 and 47,000 μg/L in mining areas, contrasted with unaffected downstream wells measuring between 0.5 and 890 μg/L.

The research suggested that the lithium found in groundwater downstream was primarily due to natural interactions between pegmatite rocks and water rather than direct mining activities. This was evidenced by rising lithium levels in groundwater following rainfall, which intensified water-rock interactions.

Moreover, the team analyzed ions such as calcium, sulfate, and chloride using an
ion chromatograph
. They observed spikes in calcium and sulfate concentrations in surface waters within 10 kilometers downstream of the processing facility, measuring 50 to 120 milligrams per liter (mg/L) of calcium and 100 to 300 mg/L of sulfate. In comparison, background surface waters contained only 5 to 20 mg/L of calcium and 3 to 10 mg/L of sulfate. These ions are by-products of pegmatite processing and arise from waste composed of calcium sulfate or
plaster
.

The researchers highlighted that active mining ceased at this site around three decades ago, and the lithium levels documented reflect a long-term release from dormant mining operations and waste. Historical data indicates that during its active years, the mine may have discharged 10 to 30 times more trace metals than currently recorded.

Ultimately, the researchers concluded that processing pegmatite has a more significant impact on downstream metal and ion concentrations than mining activities themselves. As lithium mining expands, further research is essential to explore lithium toxicity and the implications of co-occurring metals like rubidium and cesium. There is also a pressing need to develop strategies to mitigate trace metals and dissolved gypsum from infiltrating water systems.

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Source: sciworthy.com

How the Largest Earthquake in History Exceeded the Richter Scale: An In-Depth Analysis

Posted on June 8, 2026 by Igor Mitreski

Regarding the Richter Scale, it was innovatively developed by seismologist Dr. Charles Richter in 1935 to create a standardized and objective number for quantifying the strength of earthquakes.

Before this advancement, earthquakes were merely classified as “violent” or “strong,” complicating global comparisons of seismic events.

The Richter Scale quantifies seismic activity based on the maximum amplitude of the seismogram waveform recorded by a seismometer—a device often dramatized in disaster films.

Significantly, the Richter Scale operates logarithmically. Thus, escalating from a magnitude 4 earthquake (which can cause books to tumble off shelves) to a magnitude 5 (which may damage poorly constructed buildings) indicates a tenfold increase in seismometer readings and approximately 32 times more energy released.

However, the traditional Richter Scale is optimized for a specific type of seismometer, which is now obsolete. Its limitations become evident when measuring large or distant earthquakes.

Consequently, earthquakes exceeding a magnitude of 7 on the Richter Scale fail to show proportional measurements relative to the actual energy released, thereby underestimating the potential damage to buildings and infrastructure.

Every increment on the Richter Scale signifies about 32 times more energy release. For instance, a magnitude 6 earthquake packs roughly 1,000 times more force than a magnitude 4. (Image credit: Getty Images)

In 1979, Professor Hiroo Kanamori and Dr. Thomas C. Hanks introduced an alternative known as the Moment Magnitude Scale. This method measures the strength of slow vibrations with periods spanning from 30 seconds to several minutes.

While these longer frequencies carry less energy, they penetrate deeper into the Earth’s crust and provide a more equitable distribution of energy measurements relative to the earthquake’s magnitude.

As a result, the Moment Magnitude Scale offers a more reliable framework for predicting earthquake energy using equipment located far from the epicenter.

Since the early 2000s, key seismological institutions have transitioned to employing the Moment Magnitude Scale.

Interestingly, seismologists occasionally still use the Richter Scale for events of magnitude less than 1, as this scale is less effective for measuring very minor earthquakes.

This article, written by Britt Gill of Peterborough, addresses the question: “What is the leading method for measuring earthquakes?”

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Unlocking the Truth: Understanding Why Your Memories Aren’t Accurate

Posted on June 7, 2026 by Igor Mitreski

Many of us envision memory as a video recording of our experiences—something we can play back at will. However, psychological research reveals that this is not how memory functions.

Psychologists, such as Sir Frederick Bartlett, explored this concept as early as the 1930s. He asked volunteers to recall a Native American story titled Ghost Battle repeatedly over several weeks and months.

Over time, participants transformed the narrative, simplifying it and diminishing its supernatural elements, eventually recalling a less authentic version of the original story.

Recent research supports this notion. In laboratory settings, participants misremembered the locations of objects due to changes in their environment. Once an incorrect memory was formed, it persisted, even when tested against the original context.

This phenomenon occurs because memory is inherently a reconstructive process. Each recall can introduce new information, leading to a reinterpretation of what we originally remembered.

You can leverage the “unstable” nature of memory to reshape past events and foster a positive mindset – Image courtesy of Getty Images

Consider your memory of the first day of school. Each recollection may differ from the original experience as your memory adjusts based on subsequent school experiences.

If you enjoyed your time at school, your memory of that first day might be filled with happy recollections. Conversely, if your school experience was negative, your memory may reflect that discomfort.

While the malleability of memory may be unsettling, it offers a unique opportunity to reshape distressing recollections and alleviate fears.

For instance, a concept known as retrieval-induced forgetting illustrates how focusing on specific aspects of a memory can weaken other details.

A study published in October 2025 demonstrated that this concept can help mitigate fears stemming from negative experiences.

For example, if you experienced anxiety during a job interview, reflecting on the positive aspects can help lessen the grip of negative memories, ultimately increasing your confidence for future encounters.

This article addresses the question posed by Molly Tucker of Preston: “Do we truly remember events, or are we merely recalling memories of them?”

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Discover the Countries with the Highest and Lowest Cholesterol Levels Worldwide

Posted on June 7, 2026 by Igor Mitreski

South Korea boasts the lowest LDL (bad) cholesterol levels globally, according to a comprehensive analysis of 460 million lipid tests across 17 countries on five continents.

Published in European Heart Journal in 2023, the study reveals a diverse landscape of cholesterol levels around the world, highlighting how cultural factors such as diet and exercise significantly influence heart disease risk in various populations.

Koreans benefit from a diet rich in fermented foods and legumes, which is notably low in saturated fats. Studies suggest that this dietary pattern actively reduces cholesterol levels in individuals.

Other countries with below-average cholesterol figures include Turkey and, surprisingly, the United States, known as the birthplace of fast food.

Meanwhile, Austria and Germany report the highest cholesterol levels, followed closely by Japan, Australia, and Switzerland.

In nations with elevated cholesterol levels, the high consumption of animal fats and dairy products may be a contributing factor, alongside genetic predispositions.

South Koreans are likely to benefit from a diet rich in fermented foods and legumes – Image courtesy of Getty Images

For instance, in Austria, 1 in 300 individuals suffer from familial hypercholesterolemia, an inherited genetic condition that greatly elevates the likelihood of high LDL cholesterol levels.

Research indicates that cholesterol levels fluctuate significantly over time. A 2020 study analyzed trends from 1980 to 2018.

Findings show that in many high-income Western countries, cholesterol levels have decreased dramatically due to improved dietary choices and the increased use of statins and other cholesterol-lowering medications.

Conversely, cholesterol levels have surged in many low- and middle-income nations, particularly in Asia. The research noted that China transitioned from having one of the lowest rates of cholesterol levels increase in 1980 to experiencing one of the highest by 2018.

Additionally, across nearly all countries studied, men tend to have higher cholesterol levels than women.

This article addresses the question posed by Winchester’s Zoe Grant: “Which country has the lowest cholesterol levels in the world?”

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Decades of Combat: The United States Faces a Renewed Battle Against the Flesh-Eating Screwworm

Posted on June 7, 2026 by Igor Mitreski

For over 50 years, the United States has invested hundreds of millions of dollars to keep the flesh-eating screwworm at bay. Unfortunately, it’s back.

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While screwworms can infest any warm-blooded animal, they pose a significant threat to livestock, often resulting in fatalities among cattle. The ethical implications of intentionally eradicating this species have prompted debate among environmental bioethicists.

“Some species warrant consideration for complete eradication, and the screwworm is among them,” commented Gregory Koebnick, a senior research fellow at the Hastings Center for Bioethics.

Recently, the Department of Agriculture confirmed the presence of New World screwworms in calves in Texas. This marks the first occurrence of natural infestation in U.S. cattle since 1982, as reported in a recent study. A second case was subsequently identified, approximately 6 miles from the initial infection, as documented in tweets by researchers. This discovery represents a troubling resurgence of the species, reigniting the U.S.’s decades-long battle against screwworms.

Experts suggest that the U.S. will adopt a similar strategy to the one employed in the late 1950s, during which an aggressive, collaborative approach aimed at the screwworm population was initiated. The strategy involves mass-producing sterile males that, when released, render natural mating attempts futile since female screwworms mate only once.

“This strategy is effective,” stated Chad Cross, a professor of parasitology at Texas Tech University’s College of Veterinary Medicine. “It has proven successful in the past, and I believe it will continue to be effective.”

He also pointed out that the new cases in Texas serve as a critical reminder of the urgent need to prevent further outbreaks.

The screwworm fly, classified as a black fly, thrives in southern regions of the U.S. These flies are drawn to infected, neglected wounds, where females can deposit up to 300 eggs, leading to invasive larvae development.

“The larvae emerge from the eggs and feed on the flesh of warm-blooded hosts,” explained Philip Kaufman, a professor of entomology at Texas A&M University. “They pose a threat not only to domestic animals but also to wildlife, and even humans.”

Screwworm larvae possess specialized hooks that allow them to penetrate animal flesh and burrow deeper. Infection manifests as open, rotting sores on the skin, often accompanied by an unpleasant odor, which can attract other fly species. If left untreated, the infection is likely to lead to death unless proper intervention occurs, including insecticide and antibiotic treatments.

Cows graze June 2 in Quemado, Texas.
Brandon Bell/Getty Images

Infections in humans are rare but extremely painful.

“You are essentially consuming tissue, whether it is muscle, fat, or skin,” Kaufman stated. “It’s highly probable that you would become aware of this issue.”

Currently, screwworms are primarily found in the southernmost areas of the United States but can adapt to milder climates provided they remain warm enough.

“They could survive in the Midwest during favorable weather conditions, but they can’t endure the winter,” Kaufman remarked. “South Texas and South Florida will remain warm enough to sustain their survival.”

These regions were previously the main habitats for screwworms until aggressive elimination efforts began in the 1960s, which involved constructing factories and spray fields in Florida, Texas, and Central America to produce and release sterile flies.

These sterile flies are irradiated and released in large quantities to saturate outbreak areas. Their mass presence prevents wild female screwworms from successfully mating, thereby curtailing egg-laying and reproduction.

The approach yielded success, and when infections reached zero in 1982, the U.S. continued operations in Mexico and Central America, driving the screwworms further south.

“It wasn’t until around 2004 that their effectiveness extended past the Panama Canal,” Kaufman remarked.

However, the U.S. and its partners gradually reduced investments in facilities that produced and distributed sterile insects in locations where screwworms had been eliminated.

“As new factories were opened further south, those in the north were shut down, leading to the closure of the Texas facility followed by those in Mexico and Nicaragua, leaving only the Panama factory operational,” Kaufman explained. “That aging plant is now showing signs of wear.”

For two decades, the Darien Valley, an inaccessible rainforest bordering Panama and Colombia, marked the northern limit of screwworm distribution. However, in 2023, outbreaks began spreading northward, initially to Panama and Costa Rica, and subsequently to Mexico and the United States.

“The crucial question now is: why have they re-emerged?” Kaufman ponders. “No one really knows.”

Regardless of the cause, the U.S. is investing again. The USDA is constructing a $750 million facility in Texas expected to produce around 300 million sterile screwworms weekly, tripling current production levels and aligning with capabilities established in the 1960s. However, the facility is not expected to be operational until late 2027, requiring time to ramp up to full capacity.

Until then, the likelihood of outbreaks remains significant. Screwworm infestations could inflict roughly $1.8 billion in losses each year to the Texas economy alone, encompassing livestock deaths, veterinary care, treatment, and additional labor costs, according to USDA estimates for 2024.

The ultimate goal is the complete eradication of the screwworm fly from the U.S. and Central America. Some researchers argue for considering the species’ total elimination. In 2024, a consortium of bioethicists, conservation biologists, and scientists debated whether refining sterilization methods and employing genetic modifications to introduce lethal genes into the gene pool of screwworms could lead to extinction, as discussed in a paper published in Science magazine last year.

The authors contend that screwworms cause immense suffering to livestock under human care. The infections they inflict upon animals are slow to develop and agonizing for both livestock and humans, raising questions about the environmental value or benefits provided by this species.

Koebnick, the bioethicist, noted that while the group includes individuals who cherish biodiversity and advocate species conservation, they ultimately concluded that there may be instances where eradication is justifiable.

The researchers were predominantly speculating. Currently available genetic modification techniques geared towards screwworm eradication have not been tested at a large scale and are not yet viable for implementation. “If such options were available, it would represent a significant decision with potential long-term consequences,” Kebnick explained.

“These methods are not yet ready for deployment,” he added.

Source: www.nbcnews.com

Unveiling the Mystery: Why Tyrannosaurus Rex Had Small Arms

Posted on June 6, 2026 by Igor Mitreski

Why not come face to face with the world’s most fearsome dinosaur? Let’s poke fun at where it’s most sensitive: its tiny little arms.

Scientists have long debated the reasons behind the tyrannosaurus rex’s small limbs. While they agree that these arms were nearly useless, the evolutionary triggers for their size have remained a mystery—until now.

New research conducted by University College London (UCL) and the University of Cambridge analyzed 82 species of theropods, a group of bipedal, primarily carnivorous dinosaurs. The study revealed that as the head and jaw of the tyrannosaurus grew larger, the arms became progressively smaller.

This indicates that tyrannosaurus and other predatory dinosaurs evolved to rely on their powerful jaws and heads for hunting rather than their claws. Consequently, their arms diminished over time, eventually appearing disproportionately small compared to their massive heads and bodies, leading to a plethora of jokes about their little arms.

Researchers have long recognized that while tyrannosaurus rex‘s arms are vestigial—having lost their original function—this newfound correlation between arm reduction and head enlargement marks a significant development in our understanding.

The study published in Proceedings of the Royal Society B discovered that smaller arms correlate more strongly with the evolution of large, powerful skulls and jaws than with the dinosaur’s overall size. This means that having smaller arms isn’t simply a matter of size.

As lead author Charlie Roger Scherer, a PhD student in UCL Earth Sciences, puts it: “The head replaced the arm as the primary method of attack. It’s a ‘use it or lose it’ scenario; if the arms aren’t useful, they will eventually shrink.”

He adds, “These adaptations often occurred in environments rich in large prey. Trying to grab a 100-foot-long sauropod with claws is impractical. Instead, attacking and restraining it with powerful jaws would have been much more effective.”

Interestingly, while we commonly associate small arms with tyrannosaurus, there were several other theropods that skipped out on upper-body workouts. For instance, the Carnotaurus had even smaller arms than the tyrannosaurus.

Regardless of size, the study indicates that some smaller theropods also had similarly potent heads and tiny limbs, highlighting the adaptability of these fascinating creatures.

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Jupiter’s Electron Acceleration Near-Light Speed: Key Insights into Cosmic Ray Origins

Posted on June 6, 2026 by Igor Mitreski

Recent analysis of data from NASA’s Juno spacecraft reveals that Jupiter’s bow shocks not only deflect the solar wind but also serve as potent particle accelerators, propelling electrons to relativistic energies of at least 1 MeV.

As celestial bodies traverse streams of charged particles, their magnetic fields act as barriers. This interaction results in incoming particles being slowed and redirected, creating a ‘bow shock.’ Just beyond this boundary lies the foreshock, a dynamic area where magnetic forces can accelerate particles to speeds approaching that of light. Image credit: Ben C. Smith, Johns Hopkins Applied Physics Laboratory.

A shock is a disturbance caused by an object moving faster than the local speed of sound through a medium, leading to a sudden change in pressure at the interface.

Jupiter’s bow shock, for instance, arises where the planet’s magnetic field interacts with the solar wind, similar to how a ship’s bow creates waves in the water.

Most shocks in space plasma are collisionless due to low particle density, which prevents direct collisions and energy transfer through heat. Instead, electromagnetic forces govern these interactions.

Collisionless shocks are believed to be key sites where cosmic rays are accelerated to near-light speeds in a process termed relativistic electron acceleration.

Despite this understanding, scientists have faced challenges in directly observing and confirming the mechanisms behind these structures.

“Since the discovery of cosmic rays over a century ago, astronomers have been tracing their origins,” stated Dr. Savas Raptis from Johns Hopkins University Applied Physics Laboratory and his colleagues.

“These high-energy particles originate from various sources, including supernovae and solar eruptions.”

“When solar cosmic rays interact with Earth, they can induce space weather impacts that disrupt satellites, communications, and electricity grids.”

“The NASA mission illustrated how some electrons attain high energy levels in regions near Earth known as foreshocks, where solar particles first encounter Earth’s magnetic field.”

“Scientists have long suspected that this same acceleration process occurs in the foreshocks of other planetary bodies and astrophysical systems, but confirmation has been elusive until now.”

The research team analyzed data gathered by Juno during its approach to Jupiter on October 1, 2023.

Before passing through the bow shock, Juno traversed a foreshock, a turbulent area where the solar wind initially senses the planet’s magnetic field.

Over approximately 20 minutes, Juno detected a significant bubble-like disturbance identified as a foreshock transient.

The spacecraft employed three onboard instruments to measure electrons accelerated to energies reaching up to 1 MeV within this transient structure.

“By utilizing these observations and supplementary data from our solar system, we propose a universal scaling law for the Hyras limit, empirically linking the size of observable transients to maximum particle energy,” the authors concluded.

“Applying this model across diverse environments, from planetary bow shocks to protostellar jets and supernova remnants, suggests a range for maximum achievable particle energies from the MeV scale to tens of GeV and TeV, offering a method for constraining maximum cosmic ray energies in astrophysical shocks.”

The team’s paper was published in the journal Nature on June 3, 2026.

_____

S. Raptis et al. 2026. Relativistic electron acceleration in Jupiter’s bow shock and beyond. Nature 654, 47-51; doi: 10.1038/s41586-026-10473-z

Source: www.sci.news

Discover Early Paleocene Fish Fossils: Bridging the 10 Million-Year Gap Post-Dinosaur Extinction

Posted on June 6, 2026 by Igor Mitreski

Approximately 66 million years ago, the end-Cretaceous extinction event drastically altered Earth’s biodiversity. However, the implications for marine fish remain a topic of debate due to gaps in the fossil record. A recent study conducted by paleontologists reveals a collection of marine fish fossils from the 62.2 million-year-old Quraya 3 site in Egypt’s eastern desert, shedding light on this transition. These discoveries include the earliest known fossil skeletons of horse mackerel, moonfish, and pipefish, which are relatives of seahorses.

Marine fish fossils from the early Paleocene site of Quraya 3 in Egypt’s Eastern Desert. Image credit: Ian Beilatry.

“The fossil record is limited, and there exists a substantial 10 million-year gap,” stated study lead author Sanaa El-Sayed, a doctoral candidate at the University of Michigan.

“While we know asteroids impacted marine environments, it remains unclear how these events shaped the ocean’s inhabitants, particularly modern fish species.”

“This site is remarkable in addressing when, where, and which species existed in modern oceans just a few million years post-dinosaurs.”

At the Quraya 3 site, El-Sayed and her colleagues identified fossils from 21 distinct fish species spanning nine orders.

“Most of these fish are percomorphs, a dominant group in today’s oceans, yet relatively rare during the dinosaur era,” noted co-author Professor Matt Friedman, director and curator of the University of Michigan Museum of Paleontology.

“This discovery reinforces the theory that a biological crisis tied to the end-Cretaceous mass extinction led to the loss of certain fish types, allowing modern-looking fish groups to flourish soon after.”

The “Patterson Gap,” named after the paleontologist who studied it, identifies the fossil-poor section of the record before and following the mass extinction at the end of the Cretaceous.

This gap obscures our understanding of how fish species were affected by extinction events.

“This early Cenozoic gap raises two critical questions,” added Professor Friedman.

“First, did the fish we traditionally associate with extinction at the end of the Cretaceous truly not continue into the Paleogene period? Or were they simply overlooked due to poor records?”

“Second, when did recognizable modern groups actually emerge?”

“This gap represents an extensive timeframe in which the details remain unclear, frustratingly coinciding with one of Earth’s most intriguing historical periods.”

“Our remarkable findings provide insights into this critical epoch.”

“We found numerous preserved skeletons; however, the species long believed extinct were absent.”

“Our research indicates that their absence likely reflects genuine extinction occurring around the end-Cretaceous event, rather than simply a record deficiency.”

“Moreover, this site offers concrete evidence that many modern fish groups were established quite early in the evolutionary timeline.”

The research team also contemplated the broader implications of their findings in the context of the fossil record following the end-Cretaceous mass extinction.

Upon comparing their findings with data from additional fossil deposits, they noted that most percomorphs discovered shortly after extinction events predominantly thrived in tropical regions.

Conversely, fewer percomorphs appeared at high latitudes, becoming more common only significantly later.

“An intriguing geographic pattern emerges regarding how contemporary fauna evolved,” Friedman said.

“It appears they predominantly developed in tropical regions, later dispersing to higher latitudes as climatic conditions changed.”

“As we enhance our fossil record, these conclusions will be put to further rigorous testing.”

These significant findings are published in this week’s edition of Scientific Progress.

_____

Sanaa El-Sayed et al. 2026. The Rise of Modern Marine Fishes Caught in Lagerstätte during the Early Paleocene. Scientific Progress 12(23); doi: 10.1126/sciadv.aec8978

Source: www.sci.news

Scientists Discover East Asia’s Tallest Tree After a Decade of Research

Posted on June 6, 2026 by Igor Mitreski

Towering majestically in the mountains of northern Taiwan, the Taiwan Crypmeroid—a colossal conifer from the Cypressaceae family—has ancestors that date back over 100 million years, making it the tallest known tree in East Asia.

Heavenly sword tree. Image credit: Chia-Chun Hsu et al., doi: 10.3389/ffgc.2026.1746112.

Known colloquially as the Heavenly Sword, this remarkable tree stands at an impressive 84.1 meters tall, nestled within the Peishan Mountains of northern Taiwan.

Its monumental height was verified in 2023 when an adventurous climber scaled the trunk and dropped a tape measure from the tree’s crown.

“Taiwan, historically referred to as Formosa, harbors a secret deep within its rugged landscape, a unique ecosystem that supports ‘giant’ trees exceeding 80 meters in height,” stated Dr. Rebecca Chia-Chun-Su of the Taiwan Forestry Research Institute and her team.

“Since 2014, our committed group of ‘Taiwan Tree Explorers’ has been on an expedition to locate and document these towering giants.”

“This team comprises professional tree climbers, ecologists, geologists, and remote-sensing specialists.”

“In 2023, our perseverance culminated in the discovery of the king of the island’s forests, an 84.1-meter-tall Taiwan Crypmeroid.”

“This titan currently holds the title of the tallest tree in East Asia.”

“For the indigenous Rukai people, these majestic firs are affectionately known as the tree that touches the moon.”

As part of their project, researchers created a national tree canopy map using aerial laser scanning data, initially identifying 57,065 potential giant trees.

However, the steep cliffs led to numerous false positives. For instance, a tree recorded as 90 meters was actually only 25 meters tall due to its sheer cliff location.

To streamline the verification process, they sought assistance from the public.

About 372 online volunteers analyzed laser-scanned profile images of trees, successfully narrowing the candidate list to 4,736 while effectively eliminating 92% of the manual verification workload typically required by experts.

The final results indicated the presence of 941 giant trees exceeding 65 meters tall, primarily concentrated in mountainous cloud forests situated 1,500 to 2,500 meters above sea level across Taiwan.

Nine out of the ten tallest trees are over 70 meters in height and all are classified as Taiwan Crypmeroid.

Scientists have raised alarms about climate change elevating cloud bases in Taiwan’s mountains, jeopardizing the forests where these giants thrive.

The frequency of typhoons striking Taiwan has increased by 35% over the past four decades, while flood and landslide risks intensify, threatening trees that thrive in steep river valleys.

During the expedition, illegal logging of native trees was also uncovered, even within designated protected areas.

“Large, ancient trees play a significant role in forest ecosystems,” the researchers noted.

“These giants serve as major carbon reservoirs; one might sequester as much carbon as an entire grove of mid-sized trees.”

“They also create vital habitats and modify the microclimate, thus sustaining forest biodiversity.”

“Despite their size, these magnificent trees are uniquely vulnerable to climate change,” they added.

“Human activities remain a persistent threat. Though over 95% of identified giant trees are situated within protected areas, their remote locations complicate monitoring efforts.”

“During ground surveys, evidence of illegal poaching of native trees was discovered.”

“This underscores that while public protection is crucial, community vigilance is equally important.”

The team’s research paper will be published in the journal Forest Frontiers and Global Change.

_____

Rebecca Chia Chun Sue et al. 2026. A journey to discover the tallest tree in Taiwan. Front. For. Glob. Change 9; doi: 10.3389/ffgc.2026.1746112

Source: www.sci.news

Is Gene Editing of Babies Now Safe? Exploring the Latest Advances and Concerns

Posted on June 6, 2026 by Igor Mitreski

Optical Micrograph of a Human Egg Cell After Fertilization

CC Studio/Science Photo Library

In 2018, a Chinese researcher faced global condemnation after announcing he had used CRISPR technology to create three gene-edited children. The scientific community’s primary concern revolved around the risks of using CRISPR, particularly its potential to cause harmful mutations.

Recent advancements in gene editing show promise, particularly with a refined version of CRISPR called base editing. This technique allows researchers to edit healthy embryos with a significantly reduced risk of unwanted mutations. However, ethical and scientific hurdles remain before considering its broader application.

Human DNA consists of double strands, and the original CRISPR method employs a protein known as Cas9. This protein utilizes a guide RNA to target specific genomic locations, where it creates cuts in both strands. Unfortunately, such repairs by cells can lead to small mutations that may disrupt gene function.

Thus, even when the CRISPR-Cas9 system is successful, its inherent risks include major mutations and chromosomal abnormalities due to incorrect DNA repair.

Improvements, such as CRISPR base editing, now allow for more precise modifications by changing a single DNA base and cutting only one strand. Such advancements have demonstrated life-saving potential in ongoing clinical trials, particularly as treatments for conditions like hypercholesterolemia.

However, gene editing in embryos differs vastly from treating diseases in adults. In adult therapies, successful editing in just a fraction of cells may suffice. Yet, in an embryo, precise editing is critical, as every cell in the body will derive from it.

In 2017, a Chinese study explored base editing in abnormal human embryos, yielding positive results with minimal unintended changes.

More recently, Columbia University’s Dieter Egli and his team conducted a larger study using healthy two-cell embryos, achieving varied results. They found that one modification succeeded in three-quarters of cells without unintended changes, while another, less effective modification caused problems in about half of the cells.

The researchers attribute these discrepancies to the design of their guide RNA, emphasizing the need for better optimization to minimize off-target effects.

One critical challenge remains: the issue of mosaicism. If only some cells in an embryo undergo the intended gene edit, diseases still risk manifesting. This raises concerns, as evidenced by the potential mosaicism in the three gene-edited children from China.

Currently, there’s no foolproof way to confirm the absence of mosaicism in gene-edited embryos. Genetic testing can detect issues, but may fall short with mosaic embryos, necessitating more comprehensive approaches to ensure accurate results.

While recent findings are encouraging, regulators continue to demand solutions to mitigate the mosaicism issue before considering the safety of germline gene editing.

Potential strategies include utilizing gene-edited sperm or eggs, where modifications made prior to fertilization could eliminate mosaicism. Although applications in humans are still pending, innovations such as lab-generated sperm from stem cells could pave the way for safe genetic modifications.

Such advances could eventually lead to safe gene editing in future generations, but ethical questions about the implications of gene editing remain unresolved.

Topic:

Source: www.newscientist.com

Uncover the Truth: ‘Everyone is Lying to You for Money’ – A Must-See Cryptocurrency Exposé

Posted on June 6, 2026 by Igor Mitreski

Ben McKenzie: Everyone Lies for Money

Victor Peña/2026 Easy Money Productions, Inc

New Scientist: Your trusted source for science news and insights — Ben McKenzie: Everyone Lies for Money

Victor Peña/2026 Easy Money Productions, Inc

In a striking 2021 Super Bowl advertisement, actor Matt Damon declares, “Fortune favors the brave” while showcasing humanity’s remarkable achievements. Flashes of crypto.com appear, subtly implying that anyone can accomplish something monumental. For Ben McKenzie, this was the pivotal moment of realization.

In his thought-provoking documentary, Everyone Is Lying to You for Money, McKenzie reveals his genuine shock while watching this ad on TV. His personal journey—from actor with an economics degree to a critical voice against cryptocurrency wrongdoings—is both enlightening and entertaining. McKenzie captures his audience with a charming, self-deprecating humor, sharing his astonishment at the survival of the biggest players in the crypto scandals over the years.

The film chronicles the evolution of cryptocurrencies, tying it to the erosion of trust that followed the 2008 financial crisis. McKenzie rigorously explores what looks increasingly like a grand scam, targeting fraudulent billionaires heading crypto exchanges and interviewing major players in the gaming industry. Notably, he addresses legal consequences, including Alexander Mashinsky, ex-CEO of now-defunct platform Celsius, and Sam Bankman-Fried, founder of the imploded crypto exchange FTX, both of whom have raised significant alarms within the industry.

Moreover, he casts a critical eye on Hollywood elites jumping onto the ambiguous crypto bandwagon and empathizes with everyday investors who still cling to the belief that cryptocurrency represents the future of finance, despite severe losses.

“Cryptocurrency is not the future of money; it is its past, and engaging with it could be perilous,” McKenzie asserted during a Q&A session post-screening, a sentiment echoed throughout the film. He argues that scams have plagued monetary systems since their inception. Furthermore, he points out the linguistic deception, referring to “selling an idea”; alleging that so-called stablecoins lack true stability and asserting that these digital currencies are not even genuinely decentralized—they lack regulatory oversight. “There are no assets here, only lines of code,” he states emphatically.

McKenzie’s contempt for the deceit surrounding cryptocurrency shines through in both the film and his real-life engagements. Unafraid to address fellow actors endorsing cryptocurrencies, he humorously notes how Matt Damon garners undue attention. When asked about Damon’s reception of the film, McKenzie quipped, “I haven’t heard from him, but I spotted him in Brooklyn once,” while playfully imitating a shy bow. “Sorry, Matt,” he laughed, confidently implying that Damon will navigate the scrutiny just fine.

Everyone Is Lying to You for Money is set for a limited release in the US, with plans for a UK release later this year.

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Source: www.newscientist.com

Revival of Frozen Rat Chromosomes in Mice: A Breakthrough in Genetic Research

Posted on June 5, 2026 by Igor Mitreski

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Chimeric mice with rat chromosomes

University of Yamanashi

Chimeric mice with rat chromosomes from University of Yamanashi — Chimeric mice with rat chromosomes

University of Yamanashi

Colossal Biosciences, a now-defunct company, may be on the verge of revival. Scientists successfully transplanted rat chromosomes, preserved for over a year, into living mouse cells, paving the way for potential reconstruction of mammoth chromosomes within living cells. They crafted a complete mouse embedded with rat chromosomes in specific cells.

“Once we refine the technology, we will begin testing on elephant cells,” stated Teruhiko Wakayama from Yamanashi University in Japan. “If we can introduce elephant chromosomes into mouse embryonic stem cells, we would be eager to proceed with mammoth chromosomes as well.”

<p>The immediate objective of this research is to explore gene activity from extinct animals in contemporary species, potentially revealing insights beyond mere gene sequence analysis. This study also holds implications for conservation and de-extinction initiatives. For instance, in 2004, we preserved tissue from the Hawaiian pouri, an extinct bird. The unique characteristics of biological systems suggest that chromosome transfer is crucial for reviving this species.</p>
<p>An animal's genome is organized into structures known as chromosomes. During cell division, these extensive DNA strands tightly coil into the classic cylindrical shapes depicted in textbooks. These "condensed chromosomes" can be visually identified in living cells by employing dyes that bind to the surrounding proteins, enabling non-invasive observation.</p>
<p>Wakayama's method involves extracting a cell's nucleus and injecting it into an egg cell, initiating chromosome condensation—a process akin to nuclear transfer techniques utilized in cloning. This technique was first applied by Wakayama for cloning a mouse shortly after the birth of Dolly the sheep.</p>
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<p>Upon injection of the nucleus, the egg is treated with enzymes to assist in chromosome separation. A single chromosome is then retrieved using a minute hollow needle and introduced into another egg. As this egg develops into an embryo, the chromosomes subsequently integrate within all embryonic stem cells.</p>
<p>After honing this technique with mouse chromosomes, Wakayama extended the research to rats genetically modified for green fluorescence. Blood cells extracted from the tail of one such rat, preserved for over a year, successfully generated mouse embryonic stem cells containing additional chromosomes from the genetically altered rat.</p>
<p>These cells were then introduced into standard mouse embryos and implanted into female mice, resulting in chimeric animals with rat chromosomes in some of their cells. These mice appear normal but fluoresce green under UV light, indicative of the original rat cells.</p>
<p>The research team aims to create mice with an additional rat chromosome in every cell, but this objective remains unachieved. Currently, the technique appears effective only for chromosome 9 in rats, as attempts to add other chromosomes hinder embryo development. "We are actively exploring various methods to enhance the success rate," noted Wakayama.</p>
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                <p class="ArticleImageCaption__Title">This baby mouse has cells with rat chromosomes that glow green.</p>
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<p>The observed interference in embryonic development may stem from activity elsewhere in the rat chromosomes. If this is the case, researchers might need to deactivate genes on supplementary chromosomes, similar to how one X chromosome is inactivated in female mammalian cells. However, Wakayama remains optimistic that this won't be necessary.</p>
<p>The team has acquired samples of frozen elephant tissue from the zoo for experimental purposes. They are collaborating with a team that <a href="https://doi.org/10.1038/s41598-019-40546-1">successfully extracted and studied cell nuclei</a> and are considering using mammoth chromosomes from a 28,000-year-old specimen named Yuka.</p>
<p>Cloning efforts to revive mammoths from these cells are unlikely to succeed due to extensive DNA damage. Nonetheless, Professor Wakayama believes recovery of individual chromosomes for study in living cells is within reach.</p>
<p>“Even a single successful transfer is a significant milestone,” remarked <a href="https://reviverestore.org/about-us/#Ben_Novak">Ben Novak</a>, of Revive & Restore, a conservation organization. "This research could have pivotal implications for passerine birds," a diverse group that encompasses over half of all bird species, where body tissue cells such as skin and muscle no longer carry complete chromosomal information. Reproductive cells, however, retain an extra chromosome essential for survival.</p>

<p>The Hawaiian puli is a passerine bird with only sterile male tissue frozen, necessitating the introduction of two chromosomes from a closely related species—one chromosome from reproductive cells and a W chromosome specific to female birds. "Though this would lead to partial hybrids, it could facilitate the revival of the species," Novak explained.</p>
<p>Wakayama's research is not unprecedented; in 2022, a Japanese team managed to <a href="https://doi.org/10.1016/j.ajhg.2021.12.015">create a rat with an additional human chromosome 21</a> to study Down syndrome. However, this method involves significant genetic modification, making it less applicable for conservation efforts.</p>
<p>The prevalence of extra reproductive chromosomes might be more common than currently recognized, according to Novak, suggesting much of the tissue being preserved by biobanks may be incomplete.</p>

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Source: www.newscientist.com

How the Surge of AI ‘Garbage’ is Stretching Open Source Developers to Their Limits

Posted on June 5, 2026 by Igor Mitreski

AI-Generated Code Requires Human Oversight

MT Stock Studio/Getty Images

Bite-sized viral comics highlight that open-source software is built on a precarious foundation of multiple components. A cartoon illustrates this with teetering boxes labeled “All Modern Digital Infrastructure,” with a single box at the base maintained by a random volunteer from Nebraska since 2003.

This portrays the reality of open-source software: all websites, applications, and operating systems depend on it. Modern civilization relies heavily on open-source contributions, which are often carried out by dedicated volunteers during their spare time. However, an influx of AI-generated code poses a serious threat to the sustainability of open-source projects, as many contributors experience burnout and exit the community.

AI models have simplified the generation of code for new features, bug fixes, and even entire projects with a mere button click. However, this code is frequently difficult to integrate, confusing, or outright faulty. While submitting code has become easier, the human reviewers tasked with scrutinizing and approving it are increasingly overwhelmed.

In light of these challenges, I arranged an interview with Chad Whitacre, head of the open-source team at Sentry, a multi-billion-dollar company. However, he canceled just days before announcing his resignation, shuttering his LinkedIn and Bluesky accounts and bouncing emails to his inbox. In a blog post, he reflected on retreating from technology to embrace a “neo-Amish” lifestyle, stating that “AI was the last straw.”

In 2025, GitHub—home to numerous open-source projects—logged a staggering 1 billion new code submissions, with projections for over $14 billion in revenue this year, as mentioned by the company’s COO Kyle Daigle in April.

To mitigate the impact of AI-generated submissions, many projects now restrict new contributors from submitting code. Such AI-generated contributions are often made by novice developers seeking to enhance their GitHub submission records for attractive job prospects. The Zig Software Foundation, which advocates for the Zig programming language, has even instituted a ban on AI-assisted submissions, citing their poor quality.

“At first glance, AI-written code may appear functional and devoid of issues, but deeper concerns often linger. Identifying potential malfunctions requires extensive scrutiny,” says Miranda Heath from the University of Edinburgh.

Heath’s research aims to combat burnout among developers to maintain the viability of open-source projects. Yet, many contributors report feeling overwhelmed.

“When individuals experience burnout, they often seek a return to nature, much like how others engage in woodworking or birdwatching,” Heath explains. “Such experiences can strain personal relationships, leading to isolation and exacerbating burnout.”

Heath advocates for government investments in open-source initiatives rather than funneling contracts to wealthy tech corporations. “Instead of dumping funds into high-profile projects, we should reinforce essential resources. [AI] is a bubble,” she asserts.

Vlad Stefan Halbuz also contributes to open source in his spare time at the University of Edinburgh and has directly witnessed user pressures on developers. “Users don’t have the right to impose their demands without acknowledging developers’ mental health,” Halbuz points out.

Halbuz attributes the surge in AI-generated submissions to the companies producing these models, with GitHub being a primary offender. The Microsoft-owned platform has launched its own AI model, Copilot, designed to facilitate code contributions through AI assistance.

“GitHub seems to acknowledge the problems caused by [AI] agents, yet they’re among the primary contributors to this issue,” criticism from Halbuz reveals, though GitHub has not responded to requests for comment on this matter.

The challenge with AI-generated code extends beyond technical failures; significant changes can be made to projects without consulting the development team, jeopardizing project goals and disrupting collaborative efforts—ultimately eroding the open-source community’s core principles.

Mike McQuaid, a developer known for his work on Homebrew, a widely used package manager with approximately 20 million users, has strong opinions on how to navigate these issues.

He initiated Open Source Resistance, a program encouraging team members to allocate work hours toward contributions, noting that approximately 95% of open-source work occurs during business hours.

Furthermore, he isn’t hesitant to block disruptive users, including those who threaten team members, and he rejects substandard submissions—whether AI-generated or not.

“We once experienced a brief golden age in which reports of vulnerabilities were generally credible. However, my recent experiences show that most reports now are AI-generated nonsense, and the skill required has shifted to filtering out irrelevant submissions while conserving time and energy,” McQuaid states.

Yet, in the ever-evolving landscape of AI, implementing bans carries its own unique set of challenges. Open source developer Scott Shambaugh has removed AI-generated submissions from Matplotlib, a widely-used library with approximately 130 million users. Following this, an unidentified AI agent published a hit piece targeting him, accusing Shambaugh of trying to ‘protect his little fiefdom.’

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Source: www.newscientist.com

Impact of U.S. Ocean Program Budget Cuts on El Niño and AMOC Monitoring

Posted on June 5, 2026 by Igor Mitreski

One of the Ocean Observations Initiative’s moored spheres being lifted out of the ocean.

Credit: Rebecca Travis / Woods Hole Oceanographic Institution

During the winter of 2013-2014, shifts in the jet stream led to the emergence of a significant warm water mass dubbed the “blob,” which extended over 1,500 kilometers across the North Pacific Ocean. This phenomenon was detected by floating instruments anchored to the ocean floor off the coastlines of Alaska, Washington, and Oregon, alerting scientists and the fishing industry to water temperatures exceeding normal levels by up to 4 degrees Celsius.

These instruments are part of the Ocean Observing Initiative (OOI), which comprised five moorings along the West coast of the United States, as well as off the East coast and in Greenland. The National Science Foundation (NSF) announced a substantial $220 million investment in 2023, emphasizing the necessity of the OOI for monitoring “Earth’s vital organs.” However, recent announcements from the NSF indicated plans to dismantle most of these arrays due to funding reductions initiated by the previous administration.

Between 2015 and 2016, sensors attached to the OOI mooring wire identified the warm water mass, with temperatures rising significantly influenced by global-warming events, particularly El Niño. This data revealed that occurrences of the blob happened again in 2019 and may be becoming more frequent due to climate change, which has been associated with toxic algae blooms affecting fisheries, such as the $60 million loss from California’s Dungeness crab fishery.

The removal of OOI moorings jeopardizes not only weather forecasts, including precipitation predictions which affect drought conditions in the western U.S., but also the ability to monitor key elements like the Atlantic Meridional Circulation (AMOC), crucial for maintaining Europe’s temperate climate and assessing El Niño impacts.

“We’re flying blind, which ultimately results in greater costs,” states John Abraham from the University of St. Thomas in Minnesota. Operating the OOI costs approximately $56 million annually, while U.S. commercial fisheries, relying heavily on OOI data, generate billions of dollars annually. Weather-related disasters have historically caused damages reaching $183 billion, further emphasizing the importance of accurate data.

Without access to the OOI data, fishing fleets will struggle to determine which areas will be less affected by El Niño events. This upcoming El Niño is predicted by some models to be among the strongest on record. Oyster, clam, and shellfish farms would find it challenging to prepare for diminished temperatures and nutrients caused by El Niño, while scientists would lose sight of significant impacts on marine ecosystems, including the formation of low-oxygen “dead zones.”

“The timing couldn’t be worse,” lamented Hilary Palewski from Boston University, stressing the critical function of OOI in marine research.

Satellites cannot penetrate the ocean’s surface, making data from submerged floats, gliders, and tethered vessels vital for understanding the Earth’s ocean-covered regions, which account for about 70%. These instruments primarily measure temperature, salinity, and flow, but the OOI moorings also assess pH, oxygen, and CO2 levels—essential for comprehending oceanic biology and chemistry, particularly in remote, monitored regions where water mass movements influence climate.

The loss of these sensor networks will also pose challenges globally, especially concerning AMOC observability. The OOI array located in the Irminger Sea, east of Greenland, is part of the OSNAP initiative—a network of gliders and moorings stretching from Canada to Scotland, monitoring the warm saltwater flow, pivotal for the AMOC. A breakdown in this system could result in Europe experiencing severe winter conditions and disrupt essential monsoon rains vital for agriculture in Africa and Asia.

“OSNAP has revealed that most actual capsize events occur east of Greenland, making the Irminger Sea crucial for understanding variability,” notes Femke de Jong from the Royal Netherlands Marine Institute.

Palewski added that dismantling OOI will leave a significant data gap that could hinder future understanding of the AMOC, even if replacement is pursued later.

Scientists are concerned that the dismantling of OOI may herald a drastic reduction in U.S. ocean research funding, risking initiatives like OSNAP and potentially jeopardizing the Argo project, which comprises around 4,000 drifting instrument floats, over half of which are managed by the U.S.

In a statement to New Scientist, the NSF mentioned that the OOI’s removal is aimed at “prioritizing support for evolving scientific priorities.” However, this is contingent on political agendas, with experts like Gretchen Goldman of the Union of Concerned Scientists condemning it as an “attack on science,” amid proposals to cut thousands of research grants and reduce the NSF budget significantly.

This week, new regulations proposed by the administration seek to eliminate peer reviews for research funding applications and empower political appointees rather than independent experts to determine the fate of federally funded studies. Additionally, bans on international cooperation and studies on gender and diversity are planned.

Edward Deaver, a professor at Oregon State University managing the OOI array, emphasizes that both the dismantling of OOI and the proposed grant rule changes constitute sweeping reforms that threaten to undermine peer review and politicize NSF-funded research.

A recent study indicated that dismantling even a fraction of the Global Ocean Observing System, which includes the OOI and Argo floats, could inflate errors in annual ocean heating rates by 33%. This is akin to predicting an unemployment rate of 3% with an imprecise range of 2% to 4%, according to Abraham, a member of the research team.

“This is a calculated move to silence our monitoring of the ocean,” he asserts regarding the OOI dismantling. “If we don’t measure, how can we identify problems?”

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Source: www.newscientist.com

Discovering Europe’s Half-Ton Cow Ancestors: Four Million Years Ago

Posted on June 5, 2026 by Igor Mitreski

A nearly complete bovine skeleton discovered at the early Pliocene site of Camp dels Ninotz in northeastern Spain has unveiled that the ancestors of modern buffaloes and cows had reached impressive sizes long before humans inhabited the continent.

Paleo-artistic reconstruction of the early Pliocene environment around Lake Camp Dels Ninotz. Image credit: Mauricio Anton.

“Cows play a vital role in many contemporary ecosystems and human agriculture, particularly species within the Bovini tribe, such as bison, buffalo, and cattle,” stated Dr. Leonardo Solberg from the Leibniz Institute for Evolutionary and Biodiversity Sciences and his colleagues.

“However, due to the scarcity of well-preserved early fossils, their evolutionary origins and relationships with close relatives remain largely unknown.”

The study involved the examination of at least 14 human remains excavated from the Camp dels Ninotz site in Spain.

Researchers identified the specimen as Parabos tineresi, one of five buffalo-like species that thrived in Europe during the early Pliocene.

The largest of these animals is estimated to have weighed nearly 500 kg, making it smaller than most existing bovine species but larger than other similar bovid species of the period.

This indicates an early stage of body size increase in the bovine lineage, possibly as an adaptation to the changing climate and environment that characterized continental Europe during the Pliocene.

Their anatomy suggests a preference for moist, plant-rich environments, aligning with researchers’ understanding of the water-abundant ecosystem at the Camp dels Ninotz site.

Researchers argue that the early Pliocene marked the dawn of large cattle, but the exact evolutionary connection between cattle and cows remains unclear. The status of Parabos also remains ambiguous.

Comparative studies suggest that Parabos could either represent early members of the Bovini tribe or more modern relatives of the related Tragoportacini lineage, which was eventually supplanted by true water buffalo, cattle, and bison.

Future research focusing on the anatomy and ecology of Parabos will clarify their place in the bovine evolutionary narrative.

“The Camp dels Ninotz bovid is one of the most exquisite fossils from the European Pliocene,” remarked the researchers.

“The exceptional preservation of these specimens allows for a deeper understanding of their anatomy and, consequently, the ecology of the continent’s earliest large bovids.”

“Studying these fossils presented both challenges and rewards.”

“The extraordinary preservation and richness of the findings have provided us an unprecedented wealth of data for this ancient geological period, offering a new perspective on the world before humans.”

The study has been published in the journal PLoS ONE.

_____

L. Solberg et al. 2026. First or last dynasty? Parabos tineresi and the evolution of Eurasian bovidae during the early Pliocene. PLoS ONE 21 (6): e0340256; doi: 10.1371/journal.pone.0340256

Source: www.sci.news

Webb Discovers Most Distant Inactive Black Hole Ever Found

Posted on June 5, 2026 by Igor Mitreski

A supermassive black hole, boasting six billion times the mass of our Sun, resides in MRG-M0138. This discovery is based on data from the NIRSpec Integral Field Spectrometer on board NASA/ESA/CSA’s James Webb Space Telescope. MRG-M0138, a quiescent galaxy influenced by gravitational lensing, was observed when the universe was a mere 3 billion years old.

This image showcases the highly distorted red galaxy MRG-M0138 as viewed through the foreground galaxy cluster. Image credit: NASA / ESA / CSA / Webb.

Located over 10 billion light-years away, MRG-M0138’s appearance is magnified by a massive galaxy cluster, making distant galaxies seem around 30 times larger than they would normally appear.

Currently, MRG-M0138 is not forming stars, and its central black hole is also inactive.

“Utilizing Webb’s remarkable vision combined with the effects of gravitational lensing, we successfully detected this black hole located 10 billion light-years away,” remarked Dr. Andrew Newman, an astronomer at the Carnegie Institution for Science and the University of Southern California.

Dr. Newman and his team studied MRG-M0138 using Webb’s NIRSpec Integrating Magnetic Field Spectrometer.

“By merging Webb’s data with gravitational lensing effects, we were able to observe within the influence sphere of a black hole, where gravity accelerates star speeds,” he added.

“This method is one of our most effective for measuring black hole masses, and we are thrilled to apply it to earlier epochs in the universe’s timeline.”

“Only a handful of dormant black holes of this size have been detected, all in nearby regions.”

This groundbreaking finding sheds new light on the co-evolution of black holes and galaxies in the early universe.

Observations of nearby galaxies show a close correlation between the mass of central black holes and the characteristics of surrounding galaxies.

However, it has been challenging to determine if such relationships existed billions of years ago.

This fresh discovery hints that the densest galaxies were often sites for rapid black hole growth early in the universe’s history.

Though currently dormant, it is believed that MRG-M0138 was once a powerful quasar.

Professor Richard Ellis from University College London noted, “By analyzing how stars move collectively within this distant galaxy, we can measure the mass of a supermassive black hole that would otherwise remain undetectable.”

“Proving the viability of these methods for early universe galaxies will enable a more thorough investigation of black hole development over time and illuminate their role in galaxy evolution.”

The full results are published in the journal Science here.

_____

Andrew B. Newman et al. 2026. Dynamic mass measurements of an inactive black hole star at redshift 2. Science 392 (6802): 1065-1068; DOI: 10.1126/science.adx5816

Source: www.sci.news

Timeless Math Memes: A Century of Distraction for Mathematicians

Posted on June 5, 2026 by Igor Mitreski

The tree-like form arises from the connections within the Collatz conjecture.

Marzio de Biagi/Algolito Malte

Nearly a century ago, the renowned mathematician Lothar Collatz introduced a deceptively simple yet profoundly challenging puzzle. This problem has captivated numerous mathematicians, generating much discourse and debate. Despite many claiming to have solved it, the quest for a comprehensive proof continues. Once you grasp the rules, you might find yourself enraptured, and I take no responsibility for any hours you might lose to this intriguing riddle.

The process begins like a magic trick: choose any positive integer. If the number is even, divide it by 2. If it’s odd, multiply by 3 and add 1. Apply these rules iteratively to the resulting numbers. Mathematicians believe that eventually, this process will always lead to 1.

This question, known as the Collatz conjecture, remains unresolved for all positive integers. The conjecture, initiated by Lothar Collatz in the 1930s, has proven to be remarkably challenging. Even the esteemed mathematician Paul Erdős remarked, “mathematics may not be ready for such problems.”

So, what makes the Collatz conjecture so perplexing to prove? Upon hearing about this problem, many rush to calculators, eager to verify if various numbers reach 1. In fact, comprehensive computer algorithms have checked all numbers up to 2⁷¹, but given the infinity of integers, finding a definitive proof remains elusive.

The behavior of these numbers is unpredictable. Starting with 1 leads to conclusive results, while initiating with 2 accomplishes the same. However, beginning with 3 generates a chain: 10, 5, 16, 8, 4, 2, and finally 1. For 7, the sequence is more extensive, containing intermediate steps that eventually lead back to previously evaluated numbers. This implies that once you revisit past numbers, there’s no need to recalculate since their paths are already known.

This chaotic nature poses significant challenges for mathematicians. I recall a quote from the xkcd webcomic: “There’s a certain type of brain that easily malfunctions when presented with an intriguing problem.” Indeed, as the Collatz meme spread, countless individuals became ensnared by its allure.

The consequences of Collatz’s conjecture affect many enthusiasts.

xkcd.com/356/

The Mysteries of the Collatz Conjecture Unveiled

Tracing the origins of the Collatz conjecture is surprisingly challenging, yet obtaining a proof remains an even greater endeavor. In a 1980 correspondence, Collatz mentioned his long-standing investigation. Initially, he seemed to view this problem as merely a mathematical curiosity. The conjecture began gaining traction around 1950 during the International Congress of Mathematicians conference, where discussions among peers brought it into the spotlight.

Following its rise in popularity, the problem was rediscovered by various mathematicians, acquiring names like the Syracuse problem, Hasse’s algorithm, and the 3x+1 problem. This topic first appeared in print in 1971, described as “mathematical gossip.” It gained wider recognition when Martin Gardner featured it in a 1972 issue of Scientific American. Gardner, a prominent figure in recreational mathematics, fueled public intrigue in this enigmatic problem.

The Collatz conjecture has consistently straddled the line between recreational and formal mathematics. An article from 1983 titled “Do Not Try to Solve These Problems” warned mathematicians against tackling the conjecture, understanding that the temptation was almost irresistible.

Lothar Collatz dedicated over 50 years to analyzing his conjecture.

Oberwolfach photo collection

A notable advancement came in 1976, when Riho Terrace demonstrated significant results. When starting with an even number, the first operation halves it, ensuring that the Collatz chain remains below this initial number. Conversely, starting with an odd number means the first step goes above the starting point. This concept introduced the “stop time” of numbers, confirming that, in most instances, the numbers will decline rather than diverge indefinitely.

Nevertheless, this isn’t sufficient to validate the Collatz conjecture. A solitary enormous counterexample that fails to converge to 1 would invalidate the conjecture. Moreover, tackling infinite potentials raises questions about the meaning of “almost all.” In 2002, Ilya Krasikov and Lagarias provided a proof indicating that for a given number x, at least x^0.84 of integers less than x ultimately arrive at 1. For instance, if x is 100, it implies at least 47 integers below 100 do reach 1.

The most significant breakthrough emerged in 2019, when Terence Tao, perhaps the preeminent mathematician of our era, accepted the Collatz challenge. He established a stronger version of Terras’ findings, suggesting that “almost all” numbers not only drop below their initial value but can be reduced to any desired lower threshold. While this progress feels near proof, the existence of potential counterexamples continues to loom.

What lies ahead for the Collatz conjecture? As I compose this piece, reports emerge that OpenAI utilized large-scale language models to tackle a major mathematical conundrum that has confounded scholars for approximately 80 years. Not through a straightforward proof, however, but via the discovery of unexpected counterexamples. Could AI potentially solve the Collatz conjecture? While predictions are premature, it would be intriguing if a challenge that has vexed the human intellect were ultimately resolved by artificial intelligence.

Topics:

Source: www.newscientist.com

Unveiling the Giant Scorpion: The Apex Predator of Ancient Britain in the Devonian Period

Posted on June 5, 2026 by Igor Mitreski

Paleontologists have recently confirmed that Praacturus gigas is the largest scorpion ever discovered, having roamed the shallow seas during the Devonian period, approximately 415 million years ago.

Praacturus gigas. Image credit: Franz Anthony.

This ancient creature measured approximately 1 meter (3.3 ft) long and boasted formidable pincers over 16 centimeters (6.3 inches) in length. According to Praacturus gigas, it was a powerful predator that thrived in floodplain ecosystems during its time.

Originally identified as an isopod in 1871, Praacturus gigas was later reclassified after comparisons with various arthropod groups and featured in a limited edition illustration of a giant scorpion from the 1980s.

Lead author Dr. Richard Howard, curator of fossil arthropods at the Natural History Museum in London, stated, “When people think of giant arthropods, they often envision the Carboniferous rainforests of Earth’s late history, where massive insects like millipedes and dragonflies thrived.”

However, Praacturus gigas existed at least 50 million years prior to that era, in a time when large terrestrial life was just beginning to take shape.

“Confirming that this creature is indeed a scorpion significantly alters our understanding of the evolution and growth of these astonishing animals,” added Dr. Howard.

In a groundbreaking study, Dr. Howard and his team employed modern analytical methods and fossil comparisons, concluding that Praacturus gigas is accurately classified as a scorpion.

Co-author Dr. Russell Garwood, a paleontologist at the University of Manchester, commented, “Praacturus gigas has baffled paleontologists for over a century. Our collaboration, utilizing advanced imaging techniques, has allowed us to construct a much clearer understanding of these ancient creatures.”

“What’s particularly intriguing about Praacturus gigas is its significant size during an epoch when most life forms on land were quite small. This suggests an ecosystem capable of supporting giant predators,” he added.

To gain insights into this ancient ecosystem, the research team compared scorpion fossils with other contemporaneous fauna.

The findings indicate that Praacturus gigas likely inhabited aquatic environments, where larger life forms were more prevalent.

During the early Devonian period, complex terrestrial ecosystems were in their infancy; only simple plants and fungi had begun to populate the land.

This means that, unlike later megafauna, this giant scorpion did not benefit from the elevated oxygen levels found in more advanced forested environments.

Instead, its large size may have been a result of limited competition from other sizable predators.

Fossil evidence also suggests that Praacturus gigas may have had a semi-aquatic lifestyle.

Co-author Dr. Greg Edgecombe, also a paleontologist at the Natural History Museum in London, remarked, “Back then, the distinction between land and sea was far less defined. Praacturus gigas gives us a fascinating glimpse into how early animals adapted to these shifting environments.”

“This species may even represent a lineage that returned to aquatic life after its ancestors had already commenced living on land,” he noted.

The team’s paper was published in the latest issue of Paleontology.

_____

Richard J. Howard et al. 2026. Revised classification of Praacturus gigas: A giant scorpion from the Lower Devonian (Rochkovian) of Britain. Paleontology 69 (3): e70064; doi: 10.1111/pala.70064

Source: www.sci.news

How Neolithic People Transported Stonehenge’s Massive Altar Stones Across Britain

Posted on June 5, 2026 by Igor Mitreski

Recent research conducted by archaeologists at Curtin University and Sheffield Hallam University indicates that Neolithic communities, rather than glaciers, were responsible for transporting Stonehenge’s iconic six-tonne sandstone Altar Stone from north-eastern Scotland to Salisbury Plain.

Stonehenge. Image credit: Sally Wilson.

Curtin University researcher Dr. Anthony Clarke stated, “Our findings indicate that transporting the Altar Stone involved meticulous planning over multiple stages.”

“Instead of being carried naturally by ice, our evidence points to a calculated movement across various challenging terrains.”

“Our simulations suggest that during the last Ice Age, while glaciers might have transported rocks to Dogger Bank in the North Sea, they did not reach southern England. Therefore, prehistoric people had to move the stones hundreds of kilometers manually.”

“This study reveals no feasible glacier route connecting the source area to Stonehenge, thus confirming the necessity of human transport.”

“This implies that the stones may have been transported in stages, potentially utilizing a combination of land and water transport methods.”

The research incorporated mineral dating, geological provenance analysis, and computer simulations of ancient ice sheet movements to understand how the Altar Stones came to rest on Salisbury Plain.

The team initially identified the stone source in north-eastern Scotland by analyzing its mineral composition and age.

They then modeled the behavior of ancient glaciers and found evidence suggesting that the ice may have carried the stones southeast to Dogger Bank, currently submerged in the North Sea.

From these findings, the research team proposed that prehistoric peoples may have retrieved the stone from Dogger Bank, transported it to Salisbury Plain, and ultimately integrated it into the construction of Stonehenge.

“This discovery highlights an impressive level of organization and collaboration among Neolithic communities,” Dr. Clarke remarked.

“Transporting large stones over extensive distances would have required intricate planning, coordination, and a profound understanding of the landscape, along with significant determination.”

“Our study demonstrates the effectiveness of combining geological analysis and computer modeling to address enduring questions about the construction of Stonehenge.”

“Future research intends to pinpoint the exact origin of the Altar Stone in north-eastern Scotland and further explore potential transport routes utilized by prehistoric peoples.”

The results will be published in today’s Quaternary Science Journal.

_____

Anthony JI Clarke et al. From the Highlands to the Henge: Elucidating the Source and Transport Routes of Stonehenge’s Altar Stones. Quaternary Science Journal, published online June 4, 2026. doi: 10.1002/jqs.70080

Source: www.sci.news

New Microraptorine Dinosaur Species Discovered in China: A Breakthrough in Paleontology

Posted on June 5, 2026 by Igor Mitreski

Jiang Changmensis is the pioneering non-avian dinosaur discovered at a paleontological site featuring over 100 early Cretaceous bird specimens.

Jiang Changmensis (Left) launched an early attack on Gansus yumenensis (Right) in the Changma Basin, now in northwestern China, around 120 million years ago. Image credit: Lewis LaRosa / Jão Canola.

Jiang Changmensis roamed what is now northwestern China approximately 124 to 120 million years ago during the Early Cretaceous period.

This species belongs to the Microraptoridae, a subgroup of small-winged dromaeosaur dinosaurs.

Members of this lineage include the Microraptor, a four-winged dinosaur believed to be capable of gliding and possibly powered flight.

Dr. Jingmai O’Connor, a paleontologist at the Field Museum of Natural History and the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, stated, “Jiang Changmensis is one of the largest Microraptor specimens ever discovered.”

“The humerus bone fragment we possess measures approximately 10 centimeters (4 inches) in length, suggesting the dinosaur likely had a wingspan of about 4 feet, roughly the size of a barn owl.”

“We believe Jiang Changmensis, like other Microraptors, had long feathers on both its arms and legs, giving it four ‘wings’ for gliding.” Dr. O’Connor added that, while other Microraptors were likely unable to achieve true powered flight, they could probably glide like flying squirrels.

The skeletal remains of Jiang Changmensis were found in the Xiagou Formation, uncovered near Changma Village in the Changma Basin, Gansu Province, northwestern China.

This site yielded over 100 early Cretaceous bird skeletons, many of which preserved soft tissues such as feathers and skin. However, until now, no non-avian dinosaur specimens had been recorded from this location.

Dr. O’Connor remarked, “Scientists had uncovered strange clusters of dismembered bird bones at this site, but we lacked an understanding of what had caused them.”

“Now, with the discovery of Jiang Changmensis, we have our best hypothesis.”

“This is the only dinosaur found at this site that isn’t a bird, and it was considerably larger than the other dinosaurs discovered there.”

The discovery of Jiang Changmensis holds greater implications beyond identifying a new species.

Previously, all distinct members of the Microraptorinae subfamily were found in the Jehor Group, a series of geological formations located approximately 2,000 km from Changma, extending confirmed ranges into northwestern China.

Dr. Matt Lamanna, a paleontologist at the Carnegie Museum of Natural History, emphasized, “Jiang Changmensis demonstrates that non-avian dinosaurs inhabited the current Chanma Basin, renowned for its bird fossils.”

“Our team has recovered over 100 bird fossils in Chanma, but this is the sole non-avian dinosaur specimen.”

Jiang Changmensis offers critical new insights into the biological history of the Changma region and the ecological context of today’s bird ancestors.

“Understanding life on Earth today necessitates examining its origins.”

“Birds are arguably the most successful group of terrestrial vertebrates on the planet today.”

“By exploring early birds and their non-avian dinosaur relatives, we gain a clearer understanding of why this avian group has persevered.”

The team’s findings are published today in the Carnegie Chronicle Museum.

_____

Zhou Lingqi et al. 2026. A non-avian theropod (Dromaeosauridae, Microraptoridae) first identified in the Lower Cretaceous Xiagou Formation, cohabiting with birds, from the Changma Basin, Gansu Province, northwest China. Carnegie Chronicle Museum 92(2):89-110.

Source: www.sci.news

Combatting Fungal Brown Rot with Bacteria: Innovative Solutions – Sciworthy

Posted on June 5, 2026 by Igor Mitreski

Brown rot, a prevalent fungal disease in the southeastern United States, significantly impacts stone fruits like peaches, cherries, and plums.

Monilinia fructicola

is a fuzzy yellow-brown fungus that thrives on the flowers, twigs, and fruits of these trees, being the primary culprit behind brown rot. Once a tree is infected with brown rot, the damage is irreversible, leading to considerable crop losses in commercial orchards. Farmers are actively working to mitigate the spread of this infectious disease

M. fructicola

by applying a chemical spray known as

fungicide
during the spring months.

In

M. fructicola

, a biosynthetic gene called

MfCYP51

encodes a vital protein essential for fungal survival. Certain fungicides categorized as

Demethylation Inhibitors

(DMI) aim to disrupt this protein’s function, but over the past two decades, DMI fungicides have shown decreasing efficacy against brown rot, with

M. fructicola
developing increased resistance.

Live microorganisms and their metabolites present a promising alternative to traditional chemical fungicides.

Biological disinfectants

can contain bacteria that produce harmful compounds like hydrogen cyanide and pyrrolnitrin, which are detrimental to fungal cells. However, a commercially viable biofungicide has yet to be identified. A research team from Clemson University in the US and Huazhong Agricultural University in China has initiated tests to evaluate the efficacy of soil bacteria

Pseudomonas chlororaphis
and

Bacillus subtilis

in combatting brown rot.

The researchers conducted culture experiments to analyze how fungal cells express the key protein

MfCYP51

under various fungicide treatments. They investigated three strains of

M. fructicola

susceptible to conventional DMI fungicides, alongside three resistant strains, utilizing five different treatment variations, including DMI fungicide,

P. chlororaphis

metabolites, a combination of

Bacillus subtilis

cells, and their respective combinations with DMI fungicides. A control group using sterilized water instead of a disinfectant was also established.

After six hours, the researchers extracted RNA molecules from the fungi to measure gene expression. Treatments with

P. chlororaphis

and DMI fungicide +

P. chlororaphis

led to a significant decrease in

MfCYP51

expression in both susceptible and resistant isolates when compared to controls. In contrast, DMI fungicides combined with

Bacillus subtilis

increased

MfCYP51

expression in resistant isolates. The researchers concluded that

P. chlororaphis

possesses a unique capability to reduce gene expression compared to other biofungicides.

To further explore how biofungicide treatments operate, the team investigated how

P. chlororaphis

and

Bacillus subtilis

produce the antifungal metabolite pyrrolnitrin. They analyzed treatment solutions using a high-performance liquid chromatograph to separate and identify the liquid compounds. Their findings suggested that pyrrolnitrin was potentially involved in reducing gene expression.

Additionally, the researchers performed five treatments on Gala apples to assess brown rot. Each apple underwent surface cleaning and disinfection, followed by fungicide application. After 24 hours, they punctured the apples and added 20 microliters of

M. fructicola

cells, then placed them in a humid environment for five days to evaluate the brown rot spots.

Despite the reduced

MfCYP51

expression observed, treatment with

P. chlororaphis

alone did not lower brown rot incidents compared to the control. However, treatments with DMI fungicide and

Bacillus subtilis

effectively reduced brown rot spots. Specifically, the DMI fungicide +

P. chlororaphis

treatment significantly prevented brown rot compared to the control.

The researchers concluded that while biofungicides may lack standalone efficacy, their application could help farmers minimize reliance on DMI fungicides. By reducing DMI fungicide usage, infection rates of

M. fructicola

resistance could be slowed. They propose future studies to test biofungicide mixtures containing pyrrolnitrin in real-world settings on stone fruit trees.

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Source: sciworthy.com

Harvard Graduate Matt Freeze: The Scientist’s Son Poised to Lead the U.S. to FIFA World Cup Glory

Posted on June 4, 2026 by Igor Mitreski

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How did Matt Freeze excel in his journey? He steadily advanced through college and professional soccer, dedicating the same enthusiasm a child would show when jumping into bed. “I keep reminding myself,” Freeze shared with NBC News, “I’m always a student of the game.”

The ethos of being a lifelong learner runs in Matt’s family. His paternal grandparents, Ernst and Elizabeth Freese, were exceptional German scientists who immigrated to the USA after World War II. They contributed their talents to the National Institutes of Health, with Ernst being a renowned molecular biologist known for his groundbreaking studies on DNA mutations, cancer, Parkinson’s, and Alzheimer’s diseases.

“He uncovered the mechanics of genetic mutations,” stated Katherine Freese, Matt’s aunt. “This is foundational to our understanding of evolution.”

Catherine, another remarkable figure in the family, is an astrophysicist at the University of Texas, specializing in dark matter research. She tackles pivotal questions like: “How did the universe originate?” and “What is the universe composed of?”

Matt’s father, Dr. Andrew Freeze, a Harvard-trained neurosurgeon, profoundly impacted the field of gene therapy. His journey included earning a Ph.D. in neurobiology from MIT. Sadly, he passed away in 2021 at age 61 due to kidney failure.

The family legacy extends to numerous scholars who boast impressive credentials and achievements. “It’s like a family tradition,” Katherine noted.

Consider Matt’s surprise when a high school peer announced his aspirations of becoming a professional soccer player. Andrew, unfamiliar with sports culture, had concerns about his son’s future. “It felt a bit foreign to him,” Matt recalled.

Family reactions were mixed, with one uncle quipping, “Poor Matt will just warm the bench.” This uncle was also a biologist, Catherine added. “Oh, that’ll never work!”

Eventually, Matt and his father reached a compromise. Matt enrolled at Harvard University to study economics and played on the football team for two seasons before signing with MLS’s Philadelphia Union in 2018. The pandemic later allowed him to complete his degree online in 2022, though Andrew never witnessed his graduation.

“He’s undoubtedly proud,” Katherine stated. “Matt surpassed all expectations.”

Matt applied his academic insights during university, conducting a comprehensive research project focused on penalty kicks. As he progressed in soccer, it became evident that his greatest asset as a goalkeeper lay in his mental approach, handling the position almost scientifically.

“Many people mistakenly believe that goalkeeping is solely about saving shots,” Freeze explained. “Our goal is to prevent them by being aggressive, strategically positioned, and maintaining clear communication, all while reading the game effectively.”

Goalkeepers constantly evaluate the field, identifying threats and positioning themselves to defend against challenges. “A significant part of goalkeeping involves maximizing the area of the goal you can cover,” Freese said.

Fortunately, Freeze possesses a problem-solving intelligence inherited from his father. “He has a logical, analytical mindset,” stated Katherine. “It’s a unique perspective that allows him to synthesize information in ways others can’t.”

What does this perspective entail? “In mathematics and physics, creativity is essential. While equations exist, one must approach problem-solving with an inventive mindset. By combining concepts A and B, one can discover innovative solutions.” This ability is a distinctive skill they share.

Matt believes that despite the key role a goalkeeper plays in a match, their performance is often evaluated based on just a few pivotal moments. “Typically, you only get two or three significant opportunities per game, so it’s crucial to remain fully focused and explosive in those instances.”

To excel in those high-stakes moments, Freeze follows a specific routine. He diligently reviews game footage and studies his opponents but consciously limits his cellphone usage and avoids social media. His diet primarily consists of chicken, vegetables, and carbohydrates during the season. He also practices meditation to align with his body’s natural rhythms and makes a point to soak up sunlight each morning.

Moreover, Matt’s unique biology sets him apart from other goalkeepers. According to his family history, his maternal grandfather, Jack Geary, served as an Air Force pilot and a professional football player. In tribute, Matt wears the number 49 on his jersey for NYC FC. “Natural athleticism played a role,” Freese remarked. “I’m grateful for that, but it has to be expressed. To achieve that, one must flow, remain agile, and execute those critical saves.”

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Source: www.nbcnews.com

Mysterious Cold Mass in Atlantic Signals Potential Weakening of AMOC

Posted on June 4, 2026 by Igor Mitreski

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The “Cold Blob” in Temperature Visualization

Credit: NASA Scientific Visualization Studio/Goddard Space Flight Center

The Earth’s surface has experienced warming over the past 150 years, with the exception of certain areas in the North Atlantic Ocean. This specific region, found southeast of Greenland, has been termed the “warming hole” or “cold mass,” indicating it is up to 1°C cooler than historical averages.

There is ongoing debate among scientists regarding the reason for the existence of this cold blob. Recent studies suggest it may be linked to the weakening of the Atlantic Meridional Circulation (AMOC), a crucial ocean current that distributes warmth from the tropics to Europe.

<p>The AMOC is responsible for transporting warm, salty water from the Gulf of Mexico to the North Atlantic, where it cools, sinks, and then returns south along the ocean floor. Scientists are concerned that an influx of freshwater from melting ice in Greenland could lower the salinity in this area, potentially slowing the sinking process and weakening the overall circulation.</p>
<p>Recent research indicates that the AMOC may <a href="https://iopscience.iop.org/article/10.1088/1748-9326/adfa3b">cross a tipping point</a> in the coming decades, potentially leading to a complete collapse. This collapse could have severe consequences, causing significant cooling in Europe and disrupting critical monsoon rains vital for agriculture in Africa and Asia. However, current direct observations of AMOC strength span only 22 years, which is insufficient to establish clear trends.</p>
<p>Climate <a href="https://www.nature.com/articles/s41586-018-0006-5">modeling</a> suggests that the slowing AMOC reduces the supply of warm water to the North Atlantic, thereby creating this cold mass. Other models, however, attribute a major portion of the phenomenon to atmospheric changes.</p>
<section>
</section>
<p>A <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022GL100420">2022 study</a> by <a href="https://cos.northeastern.edu/people/chengfei-he/">He Chengfei</a> and researchers from Northeastern University, Boston, found that accelerated warming in the Arctic is diminishing the temperature disparity between the polar regions and tropics. This shift is causing the jet stream to move northward into the cold mass area, resulting in stronger westerly winds that increase evaporation, drawing heat away from the ocean.</p>
<p>As evaporation intensifies, cloud cover also increases. Some research indicates that this cloud cover may further contribute to the cooling of the blob.</p>

<p>Research led by <a href="https://www.pik-potsdam.de/members/stefan/homepage">Stefan Rahmstorf</a> at the Potsdam Institute for Climate Impact Research is closely examining the cold mass through climate reanalysis, utilizing direct weather observations from satellites, buoys, and ships, rather than relying on modeling techniques.</p>
<p>Since 1955, they have discovered that heat loss from the ocean’s surface has diminished in the cold mass area. It appears that the ocean is cooling not just at the surface but also at depths of up to 1,000 meters. This indicates that the AMOC is transporting less heat rather than the atmosphere removing more heat.</p>
<p>According to Rahmstorf, “Wind and clouds can only account for a minor portion of the warming hole. While some models suggest atmospheric influences, the data indicates that oceanic factors are the primary causes.”</p>
<p>This finding highlights that the Atlantic circulation has been undergoing changes for decades, intensifying concerns regarding the potential collapse of not only the AMOC but also the surrounding subpolar circulation, which is vital to the process. If this circulation were to shut down, <a href="https://nyaspubs.onlinelibrary.wiley.com/doi/abs/10.1111/nyas.14659">the UK and neighboring regions may experience even more rapid temperature drops</a> than a full AMOC collapse.</p>
<p>Rahmstorf warns, “The subarctic circulation reaching a tipping point could lead to severe climate impacts in Western Europe as early as the 2040s.”</p>

<p>However, direct measurements of ocean surface heat fluxes are currently lacking, making it challenging to accurately estimate them through modeling. A 2021 study, which used data from Rahmstorf's research, found that winds <a href="https://link.springer.com/article/10.1007/s00382-021-06003-4">may account for the majority</a> of the cold blob's formation.</p>
<p>According to He, “Inferring the energy budget of a cold mass using reanalysis poses significant challenges.”</p>
<p>While recent research provides valuable insights, experts like <a href="https://profiles.ucl.ac.uk/38605-david-thornalley">David Thornalley</a> from University College London caution that definitive conclusions about the causes of cold blobs remain elusive.</p>
<p>Limited data prevents us from entirely ruling out alternative explanations. For instance, <a href="https://www.sams.ac.uk/people/researchers/fraser-dr-neil/">Neil Fraser</a> from the Scottish Marine Science Society notes that a tributary of the AMOC, known as the Norwegian Current, may be strengthening and transporting additional heat away from the cold mass regions.</p>
<p>In conclusion, while the existence of the cold mass aligns with AMOC weakening, conclusive evidence remains to be established.</p>
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Source: www.newscientist.com

How Parenthood Can Impact Your Love Life: Rekindling Romance After Kids

Posted on June 4, 2026 by Igor Mitreski

While parenthood can disrupt date nights, not all is lost in love.

Credit: Elena Odariva / Alamy

Feeling exhausted from caring for a newborn makes it seem like there’s little time for love. New research indicates that couples tend to feel less love for their partners in the first year of parenting. Fortunately, there are steps to rekindle that connection.

Previous studies demonstrate that relationship satisfaction often declines in the two years following childbirth, with pre-pregnancy conditions frequently overlooked. Dr. Agnieszka Sorokowska, a researcher at the University of Wroclaw in Poland, sought to explore these shifts in relationships.

Sorokowska and her team studied approximately 300 childless heterosexual couples, each in committed relationships for at least two years. Participants were surveyed every six months for two years, rating their feelings of love and commitment on a scale from 0 to 6.

After examining the data from 71 couples who welcomed children during the study, researchers found that while pregnancy itself had no adverse effects, there was a noticeable decline in feelings of attachment and commitment within the first year post-birth. Couples who remained childless did not experience similar changes.

At the recent Love, Practical and Theoretical conference in Edinburgh, Sorokowska announced intentions to follow these couples until their children reach adulthood to investigate potential long-term impacts. However, past research indicates that relationship satisfaction generally improves over time, showing a steep decline followed by gradual recovery after the initial years.

Dr. Valentina Rausch-Anderegg, an independent psychologist based in Zurich, affirms that new parents may experience significant distress as a result of these early relationship changes. “Not all couples will need therapy,” she notes, “but many will notice shifts in their interactions.”

Factors such as physical and hormonal changes during pregnancy, along with overwhelming childcare responsibilities, often contribute to this dynamic. “Even simple moments, like watching Netflix or taking walks together, can feel impossible,” Rausch-Anderegg explains.

To mitigate these challenges and rediscover the romance, she encourages couples to reach out to friends and family for support and to openly discuss their concerns. “Clearly communicate your vision for parenting. Identify what aspects of your relationship are essential, even after having children—be it an annual hike or dedicating a weekly 20 minutes to reconnect with your partner.”

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Source: www.newscientist.com

First Discovery of Rare Lyme Disease Variant in New York: What You Need to Know

Posted on June 4, 2026 by Igor Mitreski

A new strain of Lyme disease has emerged in New York State, raising public health concerns.

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Most tick-borne diseases in the United States are caused by Borrelia burgdorferi, a corkscrew-shaped bacterium. However, there is another rarer species called Borrelia mayonii, which has thus far only been found in Minnesota and Wisconsin, both spread via deer ticks.

Recent CDC reports indicate that cases of B. mayonii Lyme disease were identified in upstate New York as of last July.

This infection was diagnosed in an adult from Herkimer County, extending from Utica to the Adirondack Mountains, who had not traveled recently.

The state health department found several infected ticks on the person’s property; however, a broader study of over 1,500 ticks across 24 New York counties yielded no bacteria.

The exact origin of the bacteria in Herkimer County remains unclear.

“Although this discovery was unexpected, tick species and tick-borne diseases can fluctuate geographically,” stated a spokesperson from the New York State Department of Health.

Douglas Norris, a molecular microbiology and immunology professor at Johns Hopkins Bloomberg School of Public Health, suspects that the bacterium has been present in New York ticks for several years but remains tightly contained.

Different Symptoms, Same Disease

Research on B. mayonii is limited compared to B. burgdorferi, having been discovered only in 2016 by Mayo Clinic researchers. Both species can lead to severe illness.

Symptoms can start with fever and headache. However, Lyme disease caused by B. mayonii is more likely to result in nausea and vomiting.

Norris noted that individuals infected with this less common species may not develop the rash typically seen around the tick bite. Instead, they may exhibit a rash of small red spots over a broader area.

Dr. Bobby Pruitt of the Mayo Clinic emphasized the potential for a range of neurological symptoms. “Many broader symptoms might still be unrecognized,” he noted.

The health department did not specify the symptoms exhibited by New Yorkers infected with B. mayonii last year.

Rising Lyme Disease Cases

Cases of Lyme disease have been rapidly increasing in New York. From 2020 to 2024, the incidence rose nearly 450%, soaring from about 37 cases per 100,000 people to 165 cases per 100,000. According to Department of Health statistics.

Potential occurrences of B. mayonii may rise across the Northeast, but infections remain rare, according to Pruitt.

Norris adds, “Borrelia burgdorferi will likely remain the predominant cause of Lyme disease in the U.S. and B. mayonii is not primarily responsible for it.”

Even in areas where B. mayonii has been previously documented, like the upper Midwest, cases are few. For instance, out of Minnesota’s roughly 3,000 annual Lyme disease cases, only about 2 are attributed to B. mayonii, according to the Minnesota Department of Health.

A study revealed that only 0.2% of larval ticks in New York carried B. mayonii, while around 1% of adult ticks did. In contrast, approximately 25% of nymphs and 50% of adult ticks are infected with B. burgdorferi in the Northeast.

Timing is crucial, as it takes 24 to 48 hours for ticks to transmit infectious bacteria after attachment. Therefore, the smaller nymphs are typically the responsible vectors for Lyme disease.

“People often see larger ticks, but these smaller ones typically go unnoticed,” Norris explained.

Impact of Climate Change on Lyme Disease

Norris stated that while tick-borne diseases are evolving due to climate change, this is likely not the reason for the emergence of B. mayonii in New York.

“Unfortunately, it was introduced right where it could thrive,” he noted.

Experts speculate that the bacteria may have been transported by infected ticks on migratory birds from Minnesota or Wisconsin.

New York has a climate conducive to tick reproduction and the survival of Lyme disease pathogens, creating a “sweet spot” that is shifting northward due to climate change, resulting in increased Lyme disease cases in areas previously known for their endemic status.

To minimize the risk of tick bites, experts recommend staying in the center of trails during hikes and avoiding tall grass. Wearing long sleeves and tucking pants into socks can provide additional protection. Using a repellent with 30% DEET or lemon eucalyptus oil is also advised. Regular tick checks after outdoor activities are essential, as is showering to remove ticks after being in tick-prone areas.

“We aim to encourage outdoor activities while ensuring people take necessary precautions against tick bites,” experts say. “Ticks can transmit various pathogens and diseases, so awareness is crucial.”

Source: www.nbcnews.com

Unlocking Human Multitasking Potential: How Science Shows Practice Enhances Your Skills

Posted on June 4, 2026 by Igor Mitreski

Recent studies reveal that the human brain can learn to multitask effortlessly, often without our awareness.

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For years, experts believed that the brain couldn’t handle multiple tasks simultaneously. This was attributed to the prefrontal cortex, a key brain region responsible for logical planning and problem-solving, known for its rigidity.

“We are wired to focus on one task at a time, which is often beneficial,” explained Maximilian Riesenhuber, a neuroscience professor at Georgetown University and lead researcher of the study published in the Journal of Cognitive Neuroscience. “This allows individuals to maintain focus while managing other responsibilities effectively.”

Previous research suggested that when individuals multitask, their overloaded prefrontal cortex swiftly switches between tasks.

Riesenhuber’s experiments demonstrated that the brain uses alternative strategies that develop over time through practice and experience, enabling unconscious task execution and freeing the prefrontal cortex for other duties.

The study involved 11 participants aged 18-29, who spent several weeks using an app to categorize computer-generated car images based on shared characteristics, repeating the process over 30,000 times within 5 to 10 weeks.

Initially, imaging tools indicated high activation in the prefrontal cortex; however, after weeks of task repetition, participants utilized the temporal cortex, a region associated with long-term memory, for categorization.

Riesenhuber noted that the findings suggest the prefrontal cortex can forge connections to relay information to the temporal cortex more effectively.

“This represents a form of automation, liberating the brain’s front regions to engage in additional tasks that require attention,” he stated.

This ability to master multitasking without conscious effort explains several automatic functions in daily life.

Riesenhuber pointed out that while novice drivers must fully concentrate on operating a vehicle, seasoned drivers can engage in conversation or listen to music while driving.

Michael Schoenberg, a licensed psychologist and neurosurgery expert at the University of South Florida, not involved in the study, emphasized that this research sheds light on the development of specialized skills, like analyzing brain scans or performing at Olympic levels in gymnastics.

“I have colleagues proficient in EEG tests, while I struggle to interpret them,” Schoenberg remarked. “In sports, mastering activities like the balance beam demands considerable focus and concentration, but repetitive training fosters muscle memory.”

Riesenhuber believes this principle also applies to essential aspects of childhood development, including learning to recognize objects or names, enabling automatic responses throughout life.

“We don’t examine a tree and ponder if it’s a tree,” he noted. “People aren’t born with knowledge of objects; they learn to inherently associate meaning with their surroundings.”

Variability in brain rewiring capabilities suggests some individuals naturally excel at multitasking. The Georgetown experiment showcased significant differences in how quickly participants could engage their temporal cortex and relieve the prefrontal cortex for car categorization tasks.

“This prompts many new inquiries,” Riesenhuber said. “What triggers this variation? The answer remains elusive.”

Optimistically, Schoenberg asserts that everyone possesses the potential to optimize their multitasking abilities, regardless of the decline in learning speed often seen in older age.

Frustration Can Impede Progress

Beyond patience and perseverance, few shortcuts exist for enhancing task efficiency.

“The study required around four weeks,” he explained. “The essential takeaway is that multitasking necessitates consistent practice for efficiency. Rapid improvement isn’t realistic. It demands time to form new neural pathways.”

Dr. David T. Jones, a Mayo Clinic neurologist, cautions that the brain has processing limits, so self-frustration can hinder multitasking efforts.

“Managing emotions is as demanding as sorting numbers or identifying images,” Jones added. “Self-criticism just adds to your cognitive load, making performance suffer.”

A practical strategy for handling multiple pieces of information is to break them into smaller, manageable segments, akin to how we handle phone numbers.

“Memorizing lengthy strings of digits isn’t necessary; we categorize them using dashes,” he explained. “Thus, three numbers become a single item, making it easier to hold that chunk in your memory.”

How AI Influences Multitasking

Schoenberg warned against excessive reliance on technology for multitasking, like using AI for writing or data analysis, which may counteract our brain’s developed multitasking capabilities. A new study indicates that our multitasking proficiency only emerges after gaining a specific level of expertise, showing that prolonged dependence on AI could obstruct the acquisition of complex skills.

“Mastery depends on our ability to recognize patterns; over-reliance on AI prevents that,” Schoenberg stated. “Developing efficient pattern recognition enhances our capacity to multitask, enabling quicker decisions and simultaneous integration of various elements.”

Source: www.nbcnews.com

Discover the Secrets of Our DNA: A Comprehensive Review of Tuli King’s Professional Book Recommended by Leading Scientists

Posted on June 4, 2026 by Igor Mitreski

The Amanda Knox Case: DNA Evidence’s Role

Image Credit: Oli Scarff/Getty Images

Amanda Knox taken by police in Perugia, Italy — The Amanda Knox Case: DNA Evidence’s Role

Image Credit: Oli Scarff/Getty Images

The Secrets of Our DNA
Turi King
Doubleday, UK. Transworld Digital, USA

In 1993, DNA evidence played a critical role in solving a murder case in Idar-Oberstein, Germany, where a 62-year-old woman was found strangled. The analysis revealed that two other people were involved, hinting at a female suspect.

Fast forward to 2007, the infamous ‘Phantom of Heilbronn’ case surfaced in Germany, linking a woman’s DNA to 41 different crimes, sparking a massive manhunt. Ultimately, it was revealed that the phantom was a factory worker producing contaminated DNA swabs.

Turi King states, “DNA is not the silver bullet people think it is,” emphasizing its limitations as well as its strengths in solving criminal cases.

“You almost certainly carry the DNA of a loved one or work colleague with you.”

Dr. King highlights the impact of DNA analysis in historical cases, including the identification of King Richard III’s remains in 2012 through advanced genetic techniques.

DNA collected at crime scenes does not necessarily confirm involvement, as seen in the Amanda Knox case, where misinterpretations of DNA evidence led to wrongful convictions.

The book serves as a reminder of the dual nature of DNA analysis: while it offers powerful insights, it also comes with inherent risks of misinterpretation. Dr. King poignantly notes that the case of Knox illustrates how sensitive DNA detection can lead to wrongful accusations.

Additional Insights on Genetics

Gattaca
A thought-provoking film on genetic destiny directed by Andrew Niccol, still relevant today.

Orphan Black
A series that explores the implications of cloning and genetic identity.

Beyond Inheritance
Written by Roxanne Khamsi

Explore the dynamic nature of our genome and the continuous mutations that occur within our bodies.

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Source: www.newscientist.com

How Rachel Carson’s ‘Silent Spring’ Revolutionized Science and Environmental Awareness in 1962

Posted on June 4, 2026 by Igor Mitreski

How Does Rachel Carson’s Silent Spring Hold Up Today?

Explore 'Silent Spring' by Rachel Carson, a pivotal work in science and environmentalism. — How Does Rachel Carson’s Silent Spring Hold Up Today?

Rachel Carson, a pioneering marine biologist, authored three impactful books on marine life and one transformative letter, prompting a shift in focus towards the environmental consequences of pesticides like DDT. This letter, published in the Boston Herald, highlighted the lethal impacts of DDT on Massachusetts bird populations, prompting Carson’s extensive research into pesticide effects and leading to her seminal work, Silent Spring.

Silent Spring emerged as a groundbreaking and influential text, heralding the modern environmental movement. As Margaret Atwood noted, Carson’s publication in 1962 fundamentally altered public perception on environmental issues. Following its release, President John F. Kennedy initiated investigations into the impacts of DDT and other pesticides, catalyzing the establishment of crucial environmental legislation including the creation of the Environmental Protection Agency in 1970 and pivotal laws like the Clean Air Act (1963) and Endangered Species Act (1973).

In Silent Spring, Carson begins with a vivid description of a fictional American town, once alive with flora and fauna, now silenced by industrial and agricultural pollution. She poignantly illustrates how pollution decimates ecosystems, posing threats to human health in just a few decades.

DDT, first used as an insecticide in 1939 and extensively employed during World War II, became a staple in post-war pest control. However, its widespread use raised environmental alarms, as documented in Silent Spring. Carson’s work revealed how pesticides and herbicides contaminated groundwater and air, impacting ecosystems beyond immediate targets. Dangers remain, as biologist Dave Golson points out, with pesticide approvals escalating from 37 in Carson’s time to 900 today in the U.S.

Carson’s insights into ecology and the interconnectedness of species were ahead of her time. She emphasized the ripple effects of pesticide use within food webs, illustrating the silent fallout across interconnected organisms. “Nature rarely operates in separate, closed compartments,” she wrote, shedding light on the profound web of life and its fragility.

The publication of Silent Spring involved immense personal courage. The chemical industry mounted extensive campaigns to discredit Carson, who tragically passed away from cancer in 1964, shortly after her groundbreaking work. Ironically, the carcinogens she chronicled may have contributed to her own health struggles.

Thanks to Carson’s contributions, we now recognize that pesticides can disrupt numerous species within ecosystems. Present-day research continues to investigate the untargeted effects of pesticides, including their influence on symbiotic relationships that are crucial for ecological balance.

Carson advocated for scientific solutions to crop protection while being acutely aware of climate change impacts. She eloquently articulated that “the history of life on Earth has been a history of interactions between living things and their environments.” Her work remains essential reading for understanding the intricate history of life and our responsibilities toward nature.

Silent Spring is a pivotal resource for anyone seeking insight into environmental history and future challenges. Carson asserted, “Man is part of nature, and man’s war against nature is necessarily a war against himself,” underscoring the intimate bond between humanity and the ecosystem.

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Source: www.newscientist.com