Ancient Fireballs: The Lyrids Meteor Shower Tonight – Don’t Miss Out on the Spectacular Display!

Every April, the Lilid Meteor Shower returns to our sky, offering the chance to get a glimpse of the fireballs across the sky.

Though not the most prolific meteor exhibit of the year, Lilid is a welcome treat for Stargazer.

All you need to know about Lilid in 2025 is when to look up, what to expect, how to get the best views and more.

When is Lyrid Meteor Shower 2025?

Lilid will be active from April 15th to 25th, 2025, and peak activity is expected on the evening of April 22nd early on April 23rd.

Your best bet is to still go out before dawn on April 23rd. The radiation point (the part of the sky where the meteor appears to come from) is the best.

Where to see Lilid

Lilids are emitted from the constellation Lyra, located near the bright star Vega, one of the easiest stars in the Northern Hemisphere.

Look east or northeast after midnight and let your eyes clean the sky. Meteors may appear in any direction rather than near meteors.

No telescopes or binoculars are required. In fact, it’s better to see the meteor shower with the naked eye and be able to take in as many sky as possible.

read more:

  • Can you hear the meteor?
  • Meteors, Asteroids, Comets: What’s the difference?
  • How can you tell that a metstone comes from a particular planet?

How many meteors are there?

Under a dark moonless sky, Lilids usually produce 10-15 meteors per hour, but sudden bursts can produce up to 100.

Lilid is known for being quick and sometimes bright, with strange fireballs thrown in properly.

The month around this time will pass the third quarter, so if it rises it will be very bright. Thankfully, this won’t last until around 4am (US and UK). This means you’ll get unobstructed meteor monitoring for hours.

Laila’s constellation. Vega is a bright star in the top right. – Getty

What causes the Lyrid Meteor Shower?

The Lyrid meteor is caused by the Earth passing through the traces of debris left by Comet Thatcher. It finally reached the approach closest to the sun in 1861, so it takes a long time to wait until our path comes again (c. 2276).

When comet dust and rock fragments collide at high speed in the atmosphere (approximately 50 km/s), they burn out and create stripes of light seen from the ground.

Lilid is actually one of the oldest recorded meteor showers. Chinese astronomers observed them over two to six hundred years ago.

Tips for viewing lyrids

Catching a meteor shower is not complicated, but some wise strategies can make all the difference.

  • Find a dark place It’s quite far from the city lights – less light pollution, the better.
  • Give me time to adjust my eyes In the darkness. It can take 20-30 minutes to see the sky at its best.
  • Wear warm clothesEven in spring. The temperature in the early morning can be chilly.
  • Lie down It allows you to comfortably scan the sky on a blanket or reclining chair.
  • be patient – Meteors have bursts and may take some time to catch good ones.

If you’re having trouble finding the sky you need, Technology helps. “Star Map apps like Sky Guide, Star Walk 2, and Stellarium will help you find Sky Vega and Lyra using your phone.” Dr. Sham Balajia researcher in space particle physics and cosmology at King’s College London.

“Many apps use augmented reality, so just point your phone in the sky and you’ll see where to look.”

Is this the best meteor shower of the year?

Not at all – that title is usually sent to Persade in August or Geminid in December.

However, Lilid is the first decent meteor shower for Northern Hemisphere observers, and could be surprisingly dramatic.

Additionally, for the UK people, they arrive during school holidays. So, if the sky is clear, it’s the perfect excuse to make a late family stargaze.

read more:

  • Can you hear the meteor?
  • Meteors, Asteroids, Comets: What’s the difference?
  • How can you tell that a metstone comes from a particular planet?

Source: www.sciencefocus.com

Webb finds a Milky Way-like spiral galaxy in ancient universes

Astronomers using the NASA/ESA/CSA James Webb Space Telescope discovered a very ancient grand design spiral galaxy that existed just a billion years after the Big Bang. Named Zhúlóng (Torch Dragon), this galaxy is the most distant bulging disc galaxy candidate for which spiral arms have been known to date.

This image of Zhúlóng, the furthest spiral galaxy discovered to date, shows its very well-defined spiral arm, old bulge in the middle, and a large star-forming disc resembling the structure of the Milky Way. Image credits: NASA/CSA/ESA/M. Xiao, University of Geneva/G. Brammer, Niels Bohr Institute/Dawn JWST Archive.

Large spiral galaxies like our Milky Way are expected to take billions of years to form.

For the first billion years of universe history, galaxies are considered small, chaotic and irregular.

However, Webb is beginning to reveal very different photos.

Telescope deep infrared imaging reveals surprisingly large and well-structured galaxies much earlier than previously expected.

Among these new findings is Zhúlóng, the most distant spiral galaxy candidate ever identified, seen at a redshift of 5.2.

Despite this early period, galaxies exhibit surprisingly mature structures. Old bulge in the middle, large star-forming discs, spiral arms – a feature usually found in nearby galaxies.

“What stands out for Zhúlóng is both how similar it is to the Milky Way, its shape, size and star mass,” says Dr. Mengyuan Xiao, a postdoctoral researcher at Unige.

“The disc spans over 60,000 light years, comparable to our own galaxy, and the star contains over 100 billion solar masses.”

“This makes it one of the most persuasive Milky Way analogs discovered at such an early age, raising new questions about how a large, ordered spiral galaxy will form right after the Big Bang.”

The Zhúlóng Galaxy was discovered as part of a panoramic investigation.

“The findings highlight the possibility of purely parallel programs to reveal rare, distant objects that stress-test galaxy formation models,” says Dr. Christina Williams, a No-Arab astronomer and lead researcher of the Panorama Program.

Spiral structures were previously thought to take billions of years, but large galaxies were not expected to exist much later in the universe.

“The discovery shows that Webb is fundamentally changing the way we see the universe in its early days,” says Professor Pascal Oesch, an astronomer at Unige and a co-researcher of the Panorama Program.

a paper The discovery was published in the journal today Astronomy and Astrophysics.

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Mengyuan Xiao et al. 2025. Panorama: Discovery of a super gentle grand design spiral galaxy from z to 5.2. A&A 696, A156; doi:10.1051/0004-6361/202453487

Source: www.sci.news

Radiation Risks Faced by Ancient Humans 41,000 Years Ago

Magnetic field turbulence may have allowed aurora to occur more widely 41,000 years ago

evgeniyq/istockphoto/get ty image

About 41,000 years ago, Earth’s magnetic fields became weaker to only a few modern levels, with a significant increase in radiation impacting the planet’s surface. Some researchers suggest that while the Lasshamps event may have driven Neanderthals to extinction, as is known, modern humans may have protected themselves using tailored clothing and ochre sunscreen.

Earth’s magnetic field spreads out into space and acts as a protective shield against harmful radiation. Magnetic poles usually line up at the North and Antarctic, but sometimes wander due to changes in the planet’s liquid outer core.

“This system variation can lead to variations in the strength and direction of the Earth’s magnetic field, such as those observed during the Laschamps event,” he says. Agnit Mukhopadhyay At the University of Michigan.

By studying magnetic features preserved in volcanic rocks and sediments, Mukopadiyai and his colleagues created a detailed 3D reconstruction of the Earth’s magnetic field during the Raschamp event.

They found evidence that the magnetic pole shifted towards the equator, making the field strength weaker to 10% of today’s levels.

Auroras made by charged particles are usually only visible near the poles, but this will change during the Laschamp event. “The aurora can be seen in a much larger area, perhaps even near the equator,” says Mukopadhyai.

The weakened magnetic field could have allowed more sun and cosmic radiation to reach the Earth’s surface, changing the climate of the region. “These environmental changes may have encouraged adaptive behavior in human populations, including increased use of protective clothing for UV shields and ochre,” says Mukhopadhyay.

Researchers argue that the production of tailored clothing and the use of reddish mineral ochre as sunscreen may have been given Homo sapiens Benefits for Neanderthals who are thought to have become extinct during this period.

“There is definitely a rough overlap in terms of timing between the ancient modern invasion of Europe and the events of Las Shampus,” he says. Amy Mosig Way At the Australian Museum in Sydney. “But it is probably stretch to say that modern humans are better sunscreen in the form of tailored clothing than Neanderthals, and that’s probably what it is to say that this contributed to the ability to travel even further than the Neanderthals and subsequent Eurasian rule.”

Veronica Wowl Yale University says there is evidence of ancients who used ochre at this time. For example, the Ethiopian PORC-EPIC site records ochre use 45,000 years ago, which she says was enhanced 40,000 years ago. They may have used it for other reasons such as creating sunscreen and artwork and adhesives.

Ladis Laf Neyman JCMM in the Czech Republic says it is not known whether modern humans have used ochre as sunscreen. “If that were the case, it could have protected them more, but it didn’t necessarily save them,” he says. “Europeans were really piling up against them at the time.”

He points out that the Raschamp event coincided with a very cold period known as Heinrich Event 4 and a massive volcanic eruption in Italy called the Campania Ignimbrite Explosion.

“The big advantage Homo sapiens What they had as a species compared to Neanderthals was that they had a large population of other people living in Africa and elsewhere. Homo sapiens After these events, we may move to Europe,” says Neyman.

topic:

  • Ancient humans/
  • Earth Science

Source: www.newscientist.com

Avoiding Taxes in Ancient Rome: Secrets Revealed in 1,900-Year-Old Papyrus Scrolls

In what wasn’t exactly the tax evasion trial of the century – given that it took place in the second century – the charges faced by the defendants were so weighty that they included forgery, financial fraud, and fraudulent slave sales. While tax evasion is an age-old practice, these particular crimes were deemed extremely serious under Roman law, with penalties ranging from hefty fines and lifelong exile to grueling labor and, in the most severe cases, being devoured by wild animals in a practice known as damnatio ad bestias.

The details of the allegations were recorded on papyrus, which was discovered decades ago in the Judean Desert and recently subjected to analysis. The documentation includes preliminary notes for the prosecutor and hastily drafted minutes from the judicial hearings. According to the ancient records, the tax evasion schemes involved document tampering, illicit slave sales, and manumission.

The accused in both tax cases were men. One of them, Gadalius, was the son of a poor notary who had ties to the local administrative elite. In addition to convictions for extortion and forgery, his extensive list of transgressions included banditry, incitement, and four appearances in court for tax evasion before the Roman governor. Gadalius’s partner in crime was a certain Saurus, identified as his “friends and collaborators,” and the mastermind Caper. While the ethnicity of the accused is not explicitly mentioned, their Jewish background is inferred from their biblical names Gedaliah and Saul.

This ancient legal saga unfolded during the reign of Hadrian, around the year 130 AD or possibly before 132 AD when Simon Bar Kochiba, the leader of the Messianic rebels, launched a large-scale uprising, marking the third and final conflict between the Jewish people and the Empire. The rebellion was brutally suppressed, resulting in hundreds of thousands of casualties, mass expulsions of Jewish communities, and the renaming of Syria and Palestine by Hadrian.

Anna Dolganov, a historian of the Roman Empire at the Austrian Archaeological Institute who deciphered the scroll, remarked, “The papyrus sheds light on the Roman authorities’ suspicion of their Jewish subjects.” She pointed out that there is archaeological evidence of a coordinated effort during the Bar Kochiba rebellion. “It is plausible that individuals like Gadalia and Saurus, who sought to subvert Roman rule through tax evasion, were involved in the uprising’s planning,” Dr. Dolganov suggested.

In the latest edition of Tyche, an ancient journal published by the University of Vienna, Dr. Dolganov and three colleagues from Austria and Israel present court proceedings as case studies. Their research unveils how Roman institutions and imperial law influenced the administration of justice in an environment with relatively few Roman citizens.

“This document provides intriguing and valuable insights into the slave trade in this region of the empire,” noted Dennis P. Kehoe, a classicist at Tulane University not involved in the study. “The allegations may involve the Jews owning slaves.”

The exact date and location of the papyrus’s discovery remain uncertain, but Dr. Dolganov suggested it was found by an ancient Bedouin dealer in the 1950s. She suspected Nahal Haver, a steep canyon west of the Dead Sea where Bar Kochiba rebels sought refuge in a cave hid along the natural fault line of a limestone cliff. In 1960, archaeologists unearthed documents from the era in one of the Jewish hideouts, with more discoveries made since then.

A 133-line irregular scroll, initially misclassified, went unnoticed in the Israeli Antiquities Authority archives until 2014 when Hannah Cotton Parietl, a classicist at the Hebrew University of Jerusalem, identified it as being written in ancient Greek. Given the complexity and exceptional length of the document, a team of scholars was assembled to conduct detailed physical examinations and cross-referencing with historical sources.

Deciphering the papyrus and piecing together its intricate narrative posed a significant challenge for Dr. Dolganov. “The text features small, densely packed letters and highly rhetorical Greek replete with technical legal terminology,” she remarked. Unlike more straightforward documents such as contracts, there were no standardized templates for translation ease. “The fact that we only have the latter half of the original text further complicates matters,” Dr. Dolganov added.

Researchers speculated that the tax evasion scheme aimed to circumvent official scrutiny. This necessitated meticulous detective work to decipher the sequence of events. “I had to adopt the Roman fiscal authorities’ perspective to grasp the text’s nuances,” Dr. Dolganov explained. She also had to step into the accused’s shoes to understand the rationale behind tax fraud in the remote fringes of the Roman world.

The ancient stratagems resonate with contemporary tax experts. A German legal expert relayed to Dr. Dolganov that the subterfuges of Gadalius and Saurus mirrored present-day practices of tax evasion, such as asset shifting and fictitious transactions. The Roman interrogation methods aligned closely with modern-day investigative custody for financial crimes, marked by intimidation and frequently rigorous questioning.

A Princeton University classicist unaffiliated with the project, Brent Shaw, remarked:

The cases against Gadalius and Saurus were bolstered by intelligence provided by informants who betrayed them to the Roman authorities. Interestingly, the text implies that the informer might have been none other than Saurus himself, who implicated his partners to shield himself from an imminent financial scrutiny. The most plausible scenario posits that Saurus, a Jewish resident, orchestrated the pseudo-sale of several slaves to Chareas, a neighbor residing in the adjacent Arabian province, as per Dr. Dolganov’s interpretation.

By selling slaves across provincial borders, Saurus sought to obfuscate assets from scrutiny. While physically present in Saurus’s custody, the slaves, undocumented in Arabia, evaded declaration by Chareas. “Effectively, the slaves vanished on paper from Judea and never materialized in Arabia, eluding Roman oversight,” Dr. Dolganov noted. “This ensured that no further taxes were levied on these slaves.”

The Empire implemented a sophisticated system for monitoring slave ownership and collecting various levies, including a 4% tax on slave sales and a 5% duty on estates. “To emancipate empire-owned slaves, detailed documentary evidence of current and prior ownership was mandatory,” Dr. Dolganov elucidated. “Any missing or dubious documents would trigger an inquiry by Roman administrators.”

In an attempt to conceal Saurus’s double-dealings, Gadalius, the son of a notary, allegedly fabricated bills of sale and other legal documents. When authorities detected irregularities, the defendant purportedly bribed the local municipal council for protection. During the trial, Gadalius shifted blame onto his deceased father for the forgeries, while Saurus implicated Chaireas in the document tampering. The papyrus does not provide insights into their motives. “The rationale behind men risking forgery to liberate slaves without legitimate documentation remains a mystery,” Dr. Dolganov mused.

One conjecture posits that by orchestrating fake slave sales followed by manumission, Gadalis and Saurus may have been adhering to a Jewish religious mandate to free those enslaved. Alternatively, there might have been a profit incentive in capturing individuals across borders, potentially entrenching them as free Romans after freeing them from “enslavement.” Or Gadalia and Saurus might have engaged in human trafficking, a possibility that is as speculative as it is fraught with implications, Dr. Dolganov emphasized.

One aspect of the trial that struck Dr. Dolganov was the prosecutor’s professionalism. Employing sophisticated rhetorical strategies reminiscent of Cicero and Quintilian, the prosecutor exhibited a mastery of Roman legal terminology and concepts in Greek. “Here, on the edge of the Roman Empire, we witness a highly skilled legal practitioner steeped in Roman law,” Dr. Dolganov remarked.

The papyrus does not reveal the final verdict. “If a Roman judge deemed these men as incorrigible criminals deserving execution, Gadalius, as a member of the local elite, might have met a more merciful end through decapitation,” Dr. Dolganov suggested. “In any case, it beats being torn apart by a leopard.”

Source: www.nytimes.com

Rome’s Collapse Linked to Mini Ice Age Triggered by Ancient Geological Event

SEI 246262600

Iceberg calving from a Greenland glacier can carry rocks to distant coasts

Professor Ross Mitchell

The rocks transported by icebergs from Greenland to Iceland add to evidence that the European climate became much colder for a century or two in 540 AD.

This cold season in the Northern Hemisphere has been shown previously by research on tree rings and sediment cores, but is linked to many historical events around the world, from the collapse of the northern WEI dynasty in China to the decline of the city of Teotihuacan, Central America. The Justinian plague that affected the Eastern Roman Empire after the collapse of the Western Roman Empire in 476 may also have been caused in part by cold weather.

Christopher Spencer Queen’s University in Kingston, Canada and his colleagues decided to explore Iceland’s west coast beaches, as they showed it was a light colour, rather than the basalt black of almost every other beach in Iceland.

Its bright colour turned out to be due to the presence of many shells, but while walking through the area, Spencer spotted a cobblestone-sized granite stone. It was immediately clear to him that these rocks were not from Iceland. “It’s a bit embarrassing how easy it is to make a discovery,” he says.

Sure enough, analysis of the rocks confirmed that they came from various parts of Greenland. Greenland is the closest point, about 300 km from Iceland. So, Spencer must have been carried by icebergs spotted and washed away on the beach from Greenland’s glacier.

The beach formations where Greenland rocks reside were previously dated from AD 500 to AD 700, says Spencer. Greenland icebergs can still reach this area, but Greenland Rock has not been found in other layers of the beach.

An ancient rock collection analyzed in the study was traced to Greenland

Dr. Christopher Spencer

Therefore, this finding indicates that numerous Greenlandic Icebergs were washed away at this beach during the period when this layer was formed. This suggests that because of the cold conditions, Greenland’s glaciers grew larger during this period, hiding more icebergs, says Spencer.

This is neatly linked to evidence of cold seasons, sometimes known as the late antique red ice age. The cause of this event is unknown. Some people think it was caused by volcanoes, while others think it was caused by a surprising piece of Earth from a comet. Spencer believes that the solar heat is simply dependent on changes in the orbit that reaches Earth.

The extent to which climate contributed to events such as the collapse of Rome remains debated, but there is growing evidence that climate change has shaped the fate of many civilizations.

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Source: www.newscientist.com

Archaeologists suggest that wine drinking in ancient Troy was enjoyed by more than just the royal elite

Since it was discovered during the excavation of Heinrich Schlimann in the legendary fortress city of Troy, Depas Amphikypellon – The cylindrical goblet with two curved handles, considered to be the goblet mentioned in Homer’s epic, is considered a potential drinking container for wine. New research by archaeologists at the University of Tübingen, Bonn and Jena University confirms this hypothesis by identifying high concentrations of fruit acids that exhibit regular use exclusively for wine, but these same acids were also found in Troy cups and beakers. This raises questions about the social and cultural significance of beverages. Although previously recognized as the exclusive coat of arms of the early Bronze Age, wine consumption may have been more widespread than previously assumed.

Height 15 cm Depas Amphikypellon It was excavated by Heinrich Schlimann of Troy. Image credit: Valentin Marcard / University of Tübingen.

Hefaestus spoke, then rose to his feet and handed the double goblet to his beloved mother.” says the first book iliadtells us how fire gods, metalworking and volcanoes encourage mothers.

As he spoke, the white goddess Hera smiled. She reached for her son’s goblet.

He pulled out the sweet nectar from the mixing bowl, right to left to left for all the other gods.

This drinking container Depas Amphikypellonwell known to archaeologists.

The object is a thin clay goblet with two handles narrowed to a pointed base.

Over 100 ships have been previously discovered in Troy from 2500 to 2000 BC.

They are also scattered from the Aegean Sea to Asia and Mesopotamia, and can hold between 0.25 and 1 liter.

“Heinrich Schlimann has already speculated that Depas’ goblet was handed over to celebrate. iliadsaid Dr. Stephen Blum, an archaeologist at the University of Tubingen.

“The classic archaeological collection at the University of Tübingen has two fragments and depas goblets from the Schliman terrorist attack.”

In the new study, researchers heated 2 grams of samples from two fragments and studied the resulting mixture using Gas Chromatography (GC) and mass spectrometry (GC-MS).

“The evidence for succinic acid and pyruvate was conclusive. It only occurs when grape juices ferment,” said Dr. Maxim Reigeot, a researcher at the University of Bonn.

“So now we can confidently state that the wine is actually drunk not only from grape juice but also from DePas’ goblet.”

Wine was the most expensive drink of the Bronze Age, and DePas’ goblets were the most precious ship. DePas’ goblets have been found in a temple and palace complex.

Therefore, scientists speculated that wine drinking took place on special occasions in elite circles.

But did the lower classes of Troy drink wine as everyday food and luxury?

“We also studied ordinary cups where chemicals were found in the outer settlements of Troy.

“So it’s clear that wine was a daily drink for the public as well.”

Team’s paper It was published in American Journal of Archeology.

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Stephen We are Bram et al. 2025. Wine consumption problems in Troy in the early Bronze Age: organic residue analysis and Depas Amphikypellon. American Journal of Archeology 129(2); doi:10.1086/734061

Source: www.sci.news

Webb discovers Lyman-Alpha emissions from ancient galaxy in early universe

The light of Lyman Afa from Jades-GS-Z13-1 took us nearly 13.47 billion to contact us, as it dates back just 330 million years from the Big Bang.

This image shows the Jades-GS-Z13-1 (middle red dot) imaged with Webb’s near-infrared camera (Nircam) as part of the Jades program. Image credits: NASA/ESA/CSA/WEBB/STSCI/JADES COLLABORATION/BRANT ROBERTSON, UC SANTA CRUZ/BEN JOHNSON, CFA/Sandro Tacchella, Cambridge/Phill Cargile, CFA/J. Witstok, P. Jakobsen & A. Pagan, Stsci/M. Zamani, Esa & Webb.

NASA/ESA/CSA James Webb Space Telescope’s key scientific goal was to see more than ever before the distant past of our universe, when the first galaxy formed after the Big Bang.

This search has already led to record-breaking galaxies when observing programs such as the JWST Advanced Deep Deep Alactic Survey (Jades).

Webb’s extraordinary sensitivity to infrared also opens up a whole new path for research into when and how such galaxies were formed, and their impact on the universe of the time known as Cosmic Dawn.

Astronomers studying one of these very early galaxies have been discovered in a spectrum of light that challenges our established understanding of the early history of the universe.

The Jades-GS-Z13-1 (GS-Z13-1 for short) was discovered in images taken by Webb’s Nircam (near-infrared camera) as part of the Jades program.

Dr. Roberto Maiolino and colleagues at the University of Cambridge and London used galaxy brightness with various infrared filters to estimate the redshift that measures the distance of a galaxy from Earth, based on how light stretches along the path of a space.

NIRCAM imaging resulted in an initial redshift estimate of 12.9. In an attempt to confirm that extreme redshift, astronomers observed the galaxy using Webb’s near-infrared spectrometer (NIRSPEC) instrument.

The resulting spectrum confirmed that the redshift was 13.0. This is the equivalent of a galaxy seen just 330 million years after the Big Bang, the current 13.8 billion-year-old minority in the universe.

However, unexpected features also stood out. One is the wavelength of light of a particular distinct bright wavelength, identified as Lyman alpha radiation emitted by hydrogen atoms.

This emission was far stronger than astronomers who thought they could be possible at this early stage of space development.

“The early universe was soaked in a thick mist of neutral hydrogen,” Dr. Maiolino said.

“Most of this haze was lifted in a process called reionization, which was completed about a billion years after the Big Bang.”

“The GS-Z13-1 shows the incredibly clear and Telltail signature of the Lyman Alpha radiation, which can only be seen after the surrounding mist has been fully lifted,” he said.

“This result was completely unexpected by early galaxy formation theories, which surprised astronomers.”

“Before and during the reionization, the enormous amount of neutral hydrogen mist surrounding the galaxy blocked the ultraviolet rays of released energy, like the filtration effect of colored glass.”

“Until sufficient stars were formed and the hydrogen gas could ionize, such light, including Lyman Alpha radiation, could not escape these fledgling galaxies and reach Earth.”

“According to Lyman Alpha radiation from this galaxy has therefore had great significance in our early understanding of the universe.”

“We’ve seen a lot of people who have had a lot of trouble with the world,” said Dr. Kevin Hayneline, an astronomer at the University of Arizona.

“We could have thought that early universes were covered in dense mists that would be very difficult to find even a powerful lighthouse peering through, but here, beams of light from this galaxy penetrate the veil.”

“This fascinating emission line has a major impact on how and when the universe has been reionized.”

The source of GS-Z13-1’s Lyman Alpha radiation from this galaxy is yet to be known, but it may contain the first light from the earliest generation of stars formed in the universe.

“The large bubbles of ionized hydrogen surrounding this galaxy may have been created by the star’s unique population, much larger, hotter and brighter than the stars formed at the later epoch, and perhaps representative of the first generation of stars, said Dr. Joris Wittok, an astronomer at Cambridge and Appenhagen University.

“The powerful active galactic nucleus (AGN) driven by one of the first super-large black holes is another possibility identified by our team.”

Team’s Survey results Published in the March 26th issue of the journal Nature.

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J. Wittstock et al. 2025. We witness the onset of reionization with Lyman-α ejection in the redshift13. Nature 639, 897-901; doi:10.1038/s41586-025-08779-5

Source: www.sci.news

New research reveals ancient evolutionary origins of appetite-controlled neurohormones

New research shows that satiety-inducing molecules called bombesins are present not only in humans and other vertebrates, but also invertebrates such as starfish and their marine relatives.

Common starfish (Rubens of Asteria) Brofjorden is located in Govik, the Lysekil municipality in Sweden. Image credit: W. Carter.

Bombesin, a small peptide, plays an important role in regulating hunger by signaling when it is sufficient for us to eat.

That name is from Toad lit (Bombina Bombina) from its skin, the peptide was first isolated in 1971.

When injected into mammals, bombesin was found to reduce the size of the meal and increase the time between meals.

This has led scientists to believe that bombesin-like neurohormones produced in the brain and intestines are part of the body’s natural system to control food intake.

Furthermore, along with weight loss inducers such as Ozempic, compounds that mimic the action of bombesin are occurring for the treatment of obesity.

In a new study, Professor Maurice Elphick and colleagues at Queen Mary University in London explored the evolutionary history of bombesin.

By analyzing the genome of invertebrates, they discovered a gene encoding a bombesin-like neurohormone. Common starfish (Rubens of Asteria) other cerebral dermatosis, such as sea urchins and sea cucumbers.

“It was like searching for needles in a haystack, but eventually we discovered a gene encoding a bombesin-like neurohormones in the genome of a starfish and its parent,” Professor Elphick said.

Researchers then turned their attention to the function of the bombesin in this starfish, named Arbn.

Mass spectrometry was used to determine the molecular structure of ARBNs and to be chemically synthesized and tested.

They investigated how ARBN affects starfish feeding behavior. Starfish have a unique way of eating. The stomach is stretched out from the mouth to digest prey such as mussels and oysters.

“When I tested Arbn, I found that it caused a starfish stomach contraction,” said Dr. Weiling Huang, a researcher at Queen Mary University in London.

“This suggested that ARBN may be involved in stimulating stomach contractions when starfish stop feeding.”

“And this is exactly what I found. When I injected Albun into the starfish while pounding my stomach, it caused my stomach and returned it to my mouth.”

“In addition, it took longer to surround the mussels compared to those injected with ARBN, which also delayed the onset of feeding.”

The discovery of the ancient role of bombesin in appetite regulation sheds light on the evolutionary origins of animal feeding behavior.

“We can estimate that this function dates back 5 billion years to the common ancestors of starfish, humans and other vertebrates,” Professor Elphick said.

a paper Regarding the survey results, Proceedings of the National Academy of Sciences.

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Heiling Han et al. 2025. Discovery and functional characterization of bombesin-type neuropeptide signaling systems in invertebrates. pnasin press; doi: 10.1073/pnas.2420966122

Source: www.sci.news

Vivid glimpse into Mesopotamian life through ancient clay tablets

Relief from the palace of Ashbanipal showing him in a tank

British Museum/Odey Hussein

It is one of the oldest and greatest stores of knowledge. This is a huge library of texts accumulated by Assyrian king Ashrbanipal, who ruled ancient Mesopotamia around 2,700 years ago. However, after his death it was plundered and burned to the ground. Luckily, the text was written on clay tablets, so it was burned and preserved by heat.

Fragments of Gilgamesh’s Epic

British Museum/Cumringed

When the library ruins were discovered in today’s Iraq during the Victorian period, the incredible wealth of this lost world became apparent. New book, Ancient Wisdom Library Serena Wysnom of the University of Leicester in the UK can create vivid portraits of Mesopotamian life from the shattered remains of around 30,000 tablets in the library in Ashbanipal.

Royal Board Games

Camlin is good

Written in Cuneiform, the world’s oldest form of writing, the tablet not only brings back the kings and queens to life, but also brings to the lament of priests, traders and professionals. It also includes magic spells and letters of complaints. Our lives are influenced by ripples of this ancient world, with 60 minutes of time, mathematical discoveries and the invention of constellations.

Clay Prism with an account for Ashurbanipal’s military campaign

Anthony Huan/CC by-sa 2.0

Photo from above: Relief from the palace of Ashrbanipal shows him in a tank. Fragments of Gilgamesh’s Epictells the story of the Great Flood. According to a letter by his brother, the royal game of Urboard games that Ashrbanipal enjoyed as a boy. Clay prisms containing descriptions of Ashurbanipal’s military campaign. And a letter in which his sister blames his wife for her poor mucus.

A letter in which his sister criticizes his wife for poor mucus.

Odey Hussein

Ancient Wisdom Library It is currently being released in the UK and will be released in the US on May 12th.

Human Origin: Neolithic and Bronze Age Turkeys

embark on a fascinating journey through Türkiye. Turkey is a land rich in historical treasures that illuminate stories of human origin.

topic:

  • Archaeology/
  • Ancient humans

Source: www.newscientist.com

Ancient Fossil Feathers of a Gryphon Vulture Discovered in Italy Dating Back 30,000 Years

Fossil feathers are usually preserved or embedded in amber as impressions of carbonaceous membranes and lake sediments and marine sediments, but are rarely mineralized. In a new study, paleontologists have examined the mineralised feathers of 30,000 years old Griffon vultures preserved in ash-rich volcanic deposits of the Koli-Albani Volcanic Complex in Rome, Italy. Bird feathers were conserved in three dimensions, conserving tissue ultrastructures such as melanosomes. These ultrastructures are mineralized with nanocrystalline zeolites, a preservation mode that has not been previously reported in fossil soft tissue.



A 30,000-year-old fossil feather of a Griffon vulture preserved in volcanic rocks at the Koli-Albani Volcanic Complex in Rome, Italy. Image credit: Edoardo Terranova.

The fossil vulture was discovered in 1889 near Rome by a local landowner who recognized its incredible preservation.

The entire body was preserved as a three-dimensional impression, with fine details such as the lid of the eye and wing wings.

The new study, led by University College Cork paleontologist Valentina Rossi, shows that feather preservation extends to the pigmented structure of small microscopic feathers.

“Fossil feathers are usually preserved in ancient mudstones laid in lakes and lagoons,” Dr. Rossi said.

“Fossil vultures are preserved in ash deposits, which is very unusual.”

“When analyzing the feathers of fossil vultures, we found ourselves in unknown territory.”

“These feathers are different from what we normally see in other fossils.”

The authors discovered that feathers are preserved in mineral zeolites by analyzing small samples of fossil feathers using electron microscopy and chemical testing.

“Zeolites are silicon and aluminum rich minerals and are common in volcanic and hydrothermal geological environments,” Dr. Rossi said.

“Zeolites can be formed as primary minerals (using clean crystals) or secondary during the natural changes in volcanic glass and ash, giving rocks a mudlock-like side.”

“The changes in ashes due to the passage of water induced precipitation of zeolite nanocrystals, replicating feathers to the details of the smallest cells.”

“Fine preservation of feather structures indicates that vulture corpses were buried in cold thermal clastic matter.”

“We are used to think that volcanic deposits are associated with high temperature, fast-moving thermal breaking flows that destroy soft tissue,” says Professor Dawid Iurino of the University of Milan.

“However, these geological environments are complex and can include cold deposits that can store soft tissue at the cellular level.”

“The fossil record is constantly amazed us with new fossil species, strange new body shapes, in this case a new style of fossil preservation,” said Professor Maria McNamara, a professor of Cork at the University.

“We never found any delicate tissues, such as feathers, preserved in volcanic rocks.”

“Discoveries like these broaden the range of potential rock types that can be found in fossils.

a paper The findings were published in the journal Geological.

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Valentina Rossi et al. Fossil feathers from the Coralbani Volcanic Complex (central Italy, late Pleistocene) preserved in zeolites. GeologicalPublished online on March 18th, 2025. doi: 10.1130/g52971.1

Source: www.sci.news

Ancient hominins discovered in Spain with facial bones dating back 1.1 million years

Who were the first inhabitants of Western Europe, what their physical characteristics were, and where they lived are some of the pending questions in the study of Eurasian settlements during the early Pleistocene epoch. Information on ancient humanity available from Western Europe is limited and limited to the Iberian Peninsula. Now, paleontologists have discovered a fragment of the midface of humanity at the site of the Sima del Elephante in Sierra de Atapuerc, Spain. Fossils, which were 1.4 million to 1.1 million years ago, represent the earliest human faces of Western Europe ever identified.

Archaeological excavations at the Sima del Elephante in Sierra de Atapuerc, Spain. Image credits: Maria D. Guillen/Iphes-Cerca.

“It is suggested that Eurasia was first settled by Hymonin at least 1.8 million years ago,” he said, institut Catetut Catetut Catetut Catetut de Paleoecologia Humana IEvolucióSocial, Rovira I Virgili, and Museo nacional de Ciencias natures, and colleagues

“Evidence of early human settlements in Western Europe is limited to highly fragmented fossil samples from the Iberian Peninsula, with few clues as to the appearance and classification of these human beings.”

“The fossils from the Spanish site, about 850,000 years ago, are Homo Alivisora species of early people with thin midfaces that resemble modern humans. ”

“In 2007, a Hominin Joborne (ATE9-1) was found at the Simadel Elephante site in northern Spain, between 12 and 1.1 million years ago, but it was not a definitive allocation. Homo Alivisor. ”

In the new study, the authors examined the fossil ruins of Hominin Midface from the Sima Del Elefante site.

The fragment labeled ATE7-1 consists of a substantial portion of the maxilla and zygote bone from the left side of an adult.

Using both physical evidence and 3D imaging techniques, the researchers reconstructed the fossil fragments, estimated to be between 1.4 million and 1.1 million.

They also discovered additional archaeological sites: stone tools and ruins of slaughtered animals.

“These practices demonstrate that the first Europeans had a close understanding of available animal resources and knew how to systematically utilize them,” Dr. Huguett said.

According to scientists, the ATE7-1 fossil does not display the “modern” midface features found in Homo Alivisor Fossils, but there are some similarities Homo Erectus system.

They tentatively allocated fossils Homo aff. Erectusshows affinity for Homo Erectuswithholding further evidence.

This finding may suggest that at least two people live in Western Europe Homo Early Pleistocene species: Homo aff. Erectusand later Homo Alivisor.

“The evidence is why it was assigned to the ''because it is still insufficient for a definitive classification. Homo aff. Erectus“Dr. Maria Martinon Torres, a researcher at the Centro Nacional de Investigation, said he is a researcher at Evolcion Humana in London and University College London.

“This designation recognizes the affinity of ATE7-1 Homo Erectus While it leaves the possibility that it belongs to another species open. ”

“Our findings demonstrate at least two different human invasions of Western Europe during the Pleistocene era, providing fascinating insights into the evolution of the genus. Homo. ”

“While their size is small, pioneering analysis of facial fragments greatly enriched our understanding of the origins and dynamics of the earliest Europeans on the continent.”

“More research and fossil samples are needed to investigate the relationships between these populations and further improve their classification,” the researchers concluded.

Their paper It was published in the journal this month Nature.

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R. Huguett et al. The oldest human face in Western Europe. NaturePublished online on March 12, 2025. doi:10.1038/s41586-025-08681-0

Source: www.sci.news

The survival strategies of ancient amphibians during the Permian mass extinction elucidated by new study

A primitive amphibian called the Temnospondyls survived the aftermath of the end-of-permian mass extinction that occurred about 252 million years ago. University of Bristol.



Reconstruction of the Temnospondyl species Mastodon Saurus. Image credit: Mark P. Whiton, https://www.markwitton.co.uk.

The Permian mass extinction is the most severe biological crisis in the last 540 million years, eliminating more than 90% of marine species and 75% of terrestrial species.

Dr. Aamir Mehmoud, a researcher at the University of Bristol, said:

“These were predatory animals that ate fish and other prey, but were primarily water-related, just like modern amphibians such as frogs and salamanders.”

“We know that the weather was hot, especially after the extinction event. Why were these water-loving animals so successful?”

The early Triassic period was an era of repeated volcanic activity that led to global warming, motivation, reduced atmospheric oxygen, acid rain, and long stages of widespread wildfires, creating such hostile conditions that the tropics lacked animal life.

This “tropical dead zone” dramatically affected the distribution of both marine and terrestrial organisms.

Dr. Suresh Singh of the University of Bristol said:

“We measured the size and characteristics of the skull and teeth that tell us about their function.”

“To our surprise, we discovered that they weren’t much different due to the crisis,” said Dr. Armin Elssler of the University of Bristol.

“The Temnospondils exhibited the same range of body sizes as the Permian, some of them were small, insect-eating, and others were bigger.”

“These large forms included animals in long snoo trapping fish and generalist feeders covered in vast nudes.”

“However, what’s unusual is that their body size and functional diversity expanded about five million years after the crisis and then returned.”

There is evidence that due to severe global warming in the first 5 million years of the Triassic, life on land and on seas has left the tropical region to avoid fever.

“Our work shows that Temnospondil was able to cross the tropical dead zone unexpectedly,” said Professor Mike Benton of the University of Bristol.

“The fossils are known from South Africa and Australia in the south, North America, Europe, and Siberia in the north.”

“Temnospondyls must have been able to cross the tropical zones during the cool episode.”

“Their explosion of success in the early Triassic period was not tracked,” Dr. Amir said.

“They dealt with hot conditions, perhaps because they could eat most prey animals and perhaps because they had a low food need by hiding in sparse waters.”

“However, when dinosaurs and mammalian ancestors began to diversify in the mid-Triassic period, Temnospondil began to undergo a long decline.”

a paper The findings will be published in the journal Royal Society Open Science.

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Aamir Mehmoud et al. 2025. Permian – the ecology and geography of the recovery of Temnospondil after the mass extinction of the Triassic period. Royal Society Open Sciencein press; doi: 10.1098/rsos.241200

Source: www.sci.news

Ancient Bone Tool Unearthed in Tanzania Dates Back 1.5 Million Years

Paleontologists have documented a collection of bone tools from one horizon, 1.5 million years ago, in Tanzania’s All-Bai Valley. These bone tools preceded more than a million years ago other evidence of systematic bone tool production, shedding new light on the almost unknown world of early human bone technology.

The elephant’s humerus, which was 1.5 million years ago, has soaked into the tool. Image credit: CSIC.

Early humans had already made stone tools with some capacity for at least a million years, but there was little evidence of widespread adoption from bones about 500,000 years ago.

Humanity, who shaped the newly discovered bone tools, did it in the same way they created stone tools by shaving small flakes and creating sharp edges.

The transfer of this technology from one medium to another shows that the human race who made bone tools had a high understanding of tool creation, and that they can adapt their technology to different materials, important intellectual leaps.

It could be that human ancestors at the time had higher levels of cognitive skills and brain development than scientists thought.

“The discovery envisages that early humans will greatly expand their technical options, previously limited to stone tools production, and now allow new raw materials to be incorporated into a repertoire of potential artifacts.”

“At the same time, this expansion of technological potential demonstrates the advances in the cognitive and mental structures of these humans, who knew how to incorporate innovation by adapting knowledge of stone work to manipulation of bones.”

“The tool provides evidence that their creators work carefully on the bones, shatter the flakes and create useful shapes,” says Dr. Renata Peters, a researcher at the University of London.

“We were excited to find these bone tools from these early time frames.”

“It means that human ancestors were able to transfer skills from stones to bones, a level of complex cognition that we have not seen elsewhere in a million years.”

https://www.youtube.com/watch?v=ipecfzkuytc

The 1.5 million-year-old bone tool was discovered at the T69 complex site in Friedalie Ki Collongo West Gully in the All-By Valley in northern Tanzania.

The research authors discovered a collection of 27 bones shaped into the site’s tools. The bones mostly came from large mammals, mostly elephants and hippopotamus.

The tool is made only from the bones of the animal’s limbs. These are because they are the most dense and strong.

Very early stone tools have come from the All Old One era, which grew from about 2.7 million to 1.5 million years ago. It employs a simple method of making stone tools by shaving one or several flakes from the stone core using hammer stones.

The bone tool reported in the current study was a time when ancient human ancestors began in the Akeirian era, when they began around 1.7 million years ago.

Acheulean technology is best characterized by using more complex hand axes carefully shaped by napping.

Bone tools show that these more advanced techniques have been carried over and adopted for use in bone.

Prior to this discovery, bones shaped into tools were only sporadically identified in rare and isolated cases of the fossil record, not a way to imply that human ancestors systematically produced them.

Due to the overall shape, size and sharp edges, exactly what the tool was used is unknown, but it may have been used to deal with animal corpses in food.

It is also unknown that human ancestor species created the tool.

Alongside the collection of bone artifacts, no relics of humanity were found, but they are known at the time, Homo Erectus and Paranthropus Boisei He was a resident of this area.

“These tools were such an unexpected discovery, so we hope that our findings will encourage archaeologists to reconsider bone discoveries around the world in case other evidence of bone tools is missed,” the researchers said.

Their paper Today I’ll be appearing in the journal Nature.

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I. de la Torr et al. Systematic bone tool production 1.5 million years ago. NaturePublished online on March 5th, 2025. doi:10.1038/s41586-025-08652-5

Source: www.sci.news

Ancient Shock Crater Discovered in Australia, Estimated to be 34.7 Billion Years Old

A team of geologists from Curtin University discovered clear evidence of a high-speed impact that occurred 3.47 billion years ago (Archean EON) in the heart of the Pilbara region of Western Australia. This discovery makes it the oldest impact crater found on Earth, surpassing the previous record of 2.2 billion years.



Grind cones from the Arctic Dome in the heart of Australia’s Pilbara region. Image credit: Curtin University.

“When more than a million craters with diameters exceeding 1 km and over 40 km, more than 100 km, the moon holds an exquisite record of the intense artillery fire that the body of the inner solar system has endured during the first billion years of its history.”

“On Earth, this early impact record appears to reflect the destructive efficiency of erosion and subduction, bringing the primary skin back to the convection mantle.”

“Nevertheless, the oldest part of many cratons, the ancient (4-2.5 billion years ago) nuclei of the continent formed 3.5 billion years ago, must maintain evidence of impact fluxes beyond similar regions of the moon of comparable age.”

“However, the oldest recognized terrestrial impact structure in Yarabuba, Western Australia dates 2.23 billion years ago. Where are Archean Craters?”

Professor Johnson and his co-authors investigated the Archiunlock Formation at the Arctic Dome in the Pilbara region and discovered evidence affecting major metstones 3.5 billion years ago.

“This discovery has challenged our previous assumptions about the ancient history of our planet,” Professor Johnson said.

Researchers discovered Archean Crater thanks to crushed cones. This is a unique rock formation that has only formed under the intense pressure of the Metstone strike.

The crushed cone at the site, about 40 km west of the marble bar, was formed when metstones over 36,000 km/h were pounded into the area.

This was a major planetary event, with craters over 100 km wide sending fragments flying around the world.

“We know that in the early solar systems, seeing the moon is common,” Professor Johnson said.

“To date, the absence of truly ancient craters means they are largely ignored by geologists.

“This study provides an important part of the puzzle of Earth’s impact history and suggests that there may be many other ancient craters that can be discovered over time.”

“The discovery shed new light on the way metstones formed the early environment of the Earth,” said Chris Kirkland, a professor at Curtin University.

“Discovering this impact and finding more from the same period can explain a lot about how life began, as impact craters created an environment that is friendly to microbial life, such as heated pools.”

“It also fundamentally refines our understanding of the formation of the earth’s crust. The enormous amount of energy from this impact may have played a role in shaping the early Earth’s crust by pushing part of the Earth’s crust underneath another or rising from deeper into the Earth’s mantle towards the surface.

“It may have contributed to the formation of the craton, the large, stable land that formed the foundation of the continent.”

Discoveries are reported in a paper In the journal Natural Communication.

____

CL Kirkland et al. 2025. The Old Archian Impact Crater in Pyrabara Craton, Western Australia. Nut commune 16, 2224; doi:10.1038/s41467-025-57558-3

Source: www.sci.news

Ancient Humans Crafted Tools from Animal Bones 1.5 Million Years Ago

Washington – Early Man utilized animal bones to create cutting tools 1.5 million years ago on a regular basis.

A recent discovery of 27 sculptures and sharp bones from elephants and hippos in Tanzania’s All-Bai Valley site has extended the timeline for the use of ancient bones by around a million years. Researchers already knew that early individuals crafted simple tools from stones as long ago as 3.3 million years.

New discoveries of ancient humans published in Nature on Wednesday have shown that they had a more sophisticated toolkit, incorporating various materials, according to William Harcourt Smith, a paleontologist at the American Museum of Natural History. He was not involved in the study.

A well-preserved bone tool measuring up to 16 inches (40 cm) may have been created by fracturing the bulky ends of leg bones and chipping off the flakes from the remaining bone shaft using stones. Research co-author Ignacio de la Torre, a researcher at the Spanish National Research Council, explained that this technique was used to produce one sharp edge and one tip.

The bone tools were likely used as hand axes, handheld blades not attached to a handle, for the purpose of butchering animal carcasses.

These blades were ideal for removing flesh from elephant and hippo carcasses but were not utilized as spears or projectiles. “I don’t believe they were hunting these animals. They were likely scavenging,” he stated.

Numerous artifacts exhibit signs of being struck in order to remove more than dozens of flakes, indicating a sustained level of craftsmanship.

The consistent choice of bones – specifically large, heavy leg bones from a particular animal – and a pattern of uniform modifications suggest that early humans deliberately selected and crafted these bones, as noted by paleobiologist Milia Pacheco from the Federal University of San Carlos in Brazil, who was not part of the study.

The bones show minimal signs of erosion, trampling, or gnawing by other animals, ruling out the possibility of natural factors shaping the tools.

These bone tools date back over a million years, predating the emergence of our species, Homo Sapiens, by approximately 300,000 years.

According to Brianna Poviner, a paleontologist with the Smithsonian Human Origins program, when the tools were created, three types of human ancestors coexisted in the same East African region.

This tool could have been created and used by Homo Erectus, Homo Habilis, or Paranthropus Boisei. “It could have been any of these three, but it’s nearly impossible to determine which one,” Poviner mentioned.

Source: www.nbcnews.com

Evidence of Alien Life on Mars: Ancient Beach Discoveries Remain Compelling

New research suggests that Mars once was the perfect holiday destination (if they were willing to overlook radiation exposure or lack of food sources), but also had the right conditions for alien life. why? The discovery of ancient sandy beaches on the red planet suggests that once a large liquid ocean spread across the north of the planet.

The research team behind the research from China and the US is This ancient coastline is the clearest evidence yet The Red Planet was previously habitable.

“Looking back at the places where the earliest life on Earth developed, it was in the interaction between the ocean and the land, which paints a picture of an ancient habitable environment that can embrace the conditions for microbial life,” he said. Benjamin Cardenasassistant professor of geology at Penn State University in the United States and co-author of the study.

Four billion years ago, these beaches would have been the best variety. The waves are softly wrapped sandy and immersed in the sun.

“We found evidence of a lack of wind, waves and sand. It’s a proper vacation style beach,” says Cardenas, whose research was published. Proceedings of the National Academy of Sciences (pnas).

To find this, researchers used a probe up to 80m (260 feet) below the Mars surface in a region of North Mars called the Utopian Plain, using radar imaging, using a probe up to 80m (260 feet) below the Mars surface.

We discovered 76 hidden structures at depths of 10-35m (33-115ft). Sadly, this turned out to be not a mysterious alien infrastructure (we can dream of it), but rather a sedimentary deposit similar to what is found around the Earth’s coastline.

3.6 billion years ago, the ocean may have covered almost half of the red planet. The Orange Star shows where China’s Roberzouron began its exploration. Meanwhile, the Yellow Star is where NASA’s patient rover landed. Both arrived on Mars in 2021. -Image credit: Robert Citron

The structure, thickness and length of Martian sediments showed that they were not formed by the melting of rivers, winds, lava or ice, but rather by stable ancient seas. In fact, they were roughly the same as 21 people on Earth, including the Bay of Bengal.

Specifically, a formation called “foreshore sediments” is formed by the tide and wind that descends the slope towards the ocean at a 15° angle and carries sediments like sand and gravel.

“This quickly stood out to us because it suggested there were waves, meaning there was a dynamic interface between air and water,” Cardenas said. This interaction, which also took place in the early history of the Earth, is important for the beginning of life.

The discovery suggests that Mars had a warm, humid climate for tens of millions of years.

“We tend to think of Mars as a static snapshot of the planet, but it was evolving. The rivers were flowing, the sediment was moving, the land was built and eroding,” Cardenas said.

“This type of sedimentary geology tells us how the landscape looks, how they evolved, and, importantly, helps us identify where we want to look for our past life.”

read more:

  • The strange “squeak” in space is baffling scientists
  • We finally know how life on Earth began, the incredible new asteroid discovery suggests
  • Here’s how aliens actually get in touch with humanity

Source: www.sciencefocus.com

The ancient origins of London’s underground mutant mosquitoes

Culex Pipiens f. Molester It is a species of mosquito found in cities around the world

BlickWinkel / Alamy Stock Photo

The shape of mosquitoes associated with the London Underground Railway has evolved to live in human environments long before the birth of the Underground Railway, born at the age of 19.thh century.

Culex Pipiens f. Molester It was found in cities around the world, but was widely known as an underground mosquito in London after World War II.

It is closely related to the chewing shape of the same species of bird, known as Culex Pipiens f. Pipiens, And biologists thought that within the past few centuries the form of molestation had evolved in urban environments.

To learn more about its origins, Lindy McBride Princeton University and her colleagues analyzed the DNA of 790 mosquitoes from 44 countries around the world, including the shapes of Molestus and Pipiens, several closely related species.

The results suggest that rather than occurring in London's tube tunnels, Molestus Mosquito evolved in the Middle East perhaps thousands of years ago. There are three main evidence for this.

First, the morphology of Molestus is genetically closer to the pipiens population in the Mediterranean basin than the pipiens population in Northern Europe. They are such things as these Mediterranean Pipiens mosquitoes, suggesting that one arises from the other.

Additionally, molestation mosquitoes in the Eastern Mediterranean region are more genetically diverse than molestation in underground habitats in northern Europe. “This suggests that they have been in the Eastern Mediterranean for quite some time,” says McBride.

Finally, Pipiens forms do not exist in the Middle East. This makes it much easier to imagine how the ancestors of Molestus Mosquitoes colonized the region and evolved to bite humans in isolation without mating with bird-biting pipingan insects , says McBride.

Based on the team's analysis of genetic variation, it is almost certain that Molestus mosquitoes are much older than previously thought, McBride says. “Our calculations show that it must have been at least 1,000 years ago, and 2000 to 10,000 years ago. [that they evolved]. This is perfectly aligned with the development of agriculture in the Middle East. ”

“Instead of evolving from scratch in urban underground spaces, Molestus was already prepared for urban life thanks to much older adaptations,” she says. “It could have evolved even further since it was once established in a city.”

The busy urban environment could lead to a new hybrid between the bite and human bite forms of birds, which are public health significance, says McBride. “Even if hybridization is rare, these mosquitoes may exhibit intermediate behavior and may exhibit improved ability to communicate through the West Nile. [virus] From birds to humans. ”

topic:

Source: www.newscientist.com

The ancient ancestors of geese are the earliest recorded modern birds

Vegavis Iaai was an ancient relative of ducks and geese, but it dived for fish like graves and runes

Mark Whitton

The 69 million-year-old skull found in Antarctica is identified as a relative of geese and ducks, making it the oldest known modern bird.

It belongs to the first identified species named 20 years ago Vegavis Iaai, He lived alongside the last dinosaurs in the late Cretaceous period. However, only fragments of the skull had been discovered previously, so scientists were unable to agree on what kind of bird it was, or whether it was a non-vian dinosaur like a bird instead.

The fossil skull was discovered in 2011 on Vega Island off the coast of Antarctic Peninsula. However, it was enveloped in such a fierce rock that the excavator had to scrape away the surrounding stones for hundreds of hours before scanning to reveal details about its interior.

Patrick O'Connor At Ohio University, which worked on the analysis, it says that two almost perfect skull features occur only in modern birds. First, the upper beak is made up of bones, which are primarily called the anterior axis, and the size of the second bone, the maxilla, is significantly reduced, contributing only to a small portion of the bone-palate.

Second, in modern birds, the forebrain is huge compared to the rest of the brain. Like pre-modern birds and dinosaurs of nearby birds Velociraptorthese areas are proportionally much smaller.

meanwhile Vegavis According to O'Connor, it has the ability to clearly mark it as being in the same group of waterfowls as ducks and geese. The bird's beak shape, jaw muscle tissue and hind legs suggest that they were very specialized in diving into the pursuit of fish.

“Perhaps you can easily mistake it for modern graves and runes. This is only related to ducks and each other,” he says.

Jacqueline Nguyen The Australian Museum in Sydney says that this ancient species has been the subject of many debate among bird evolutionary scientists, but new research will help resolve the debate.

“together, [the evidence] It suggests that Vegavis It looks completely different from the duck and geese parents, and this could have been an “evolutionary experiment” in the early history of this group of birds.” says.

topic:

Source: www.newscientist.com

Planetist scientists offer fresh insights into the warm and wet conditions on ancient Mars

The team of the planetary researcher led by Caltech has decided on a chemical mechanism that can maintain sufficient warmth in the early days of ancient Mars, perhaps to host life.

Adams et al。 Mars has experienced a temporary warm period for the 40 million years of integration, estimating that each event lasted about 100 to 00 years. Image credit: M. Kornmesser / ESO / N. risinger, Skysurvey.org.

“Because Mars is far from the sun, it was a very puzzle that Mars had liquid water on Mars. Dr. Adams said.

“Hydrogen was previously theoretical as a magical component, mixed with carbon dioxide in Mars, causing an episode of greenhouse warming.”

“However, the life of air hydrogen was short, so a more detailed analysis was needed.”

In this study, Dr. Adams and his colleagues used photochemical modeling to describe the details of the relationship with hydrogen in the early atmosphere of Mars and how the relationship has changed over time.

“The early Mars is a lost world, but if you ask the right question, you can reconstruct in detail,” said Professor Robin Wordworth at Harvard University.

“In this study, we will integrate the atmosphere and climate of the atmosphere for the first time and bring some impressive new predictions that can be tested if you bring back Mars to Earth.”

The authors changed the model called dynamics to simulate how the combination of hydrogen and other gas, which responded to both the ground and air, reacted the early Mars climate.

They discovered that Mars has been a warm episode of about 40 million years, 400 million to 3 billion years ago during the Noatian and Hesperian days in Mars, and that each event lasted more than 10000 years.

These estimated values ​​match today's geological characteristics of Mars.

During the warm and damp period, the hydrogen of the crust or the lost water on the ground was driven, and sufficient hydrogen was supplied to accumulate in the atmosphere for millions of years.

During the fluctuations between the warm climate and the cold climate, the chemistry of the atmosphere of Mars also fluctuated. Carbon dioxide is constantly attacked by sunlight and is converted to carbon monoxide.

During the warm period, carbon dioxide can return to carbon dioxide and control carbon dioxide and hydrogen.

However, if it is long enough, the recycling decelerates, accumulates carbon monoxide, and reduces the reduction, that is, less oxygen.

Therefore, the red oxidation state of the atmosphere changed dramatically over time.

“We have identified all of these alternate time scale,” said Dr. Adams.

“And I explained all the same parts of the same photochemical model.”

Modeling work gives a potential new insight into the conditions for supporting the pre -buiotics chemistry (the basis of life after we know), and to the end of its life at intervals between cold and oxidation. Lends issues.

Researchers are working to find evidence of these alternatives using isotopic chemical modeling.

They will compare these results with the rocks of the Mars Sample Return Mission in the future.

Since Mars has no plate tectonics, unlike the earth, the surface seen today resembles the surface long ago, making the history of lakes and rivers more interesting.

“It will be a really wonderful case study for how the planet evolves over time,” said Dr. Adams.

study Published in the journal Natural global science

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D. Adams et al。 The warm climate of the early episode on Mars prepared by hydration of the crust. nut. GeosciReleased online on January 15, 2025. Doi: 10.1038/S41561-024-01626-8

Source: www.sci.news

Ancient 1,900-Year-Old Papirus Uncovers Criminal Case in the Roman Empire.

This Papirus, written in Greek, visited the area in 129/130 AD, and in front of Jewish or Roman officials in Arabia in the reign of the Roman Emperor Hadrian, before the revolution of 129/130 AD. This is a memorandum of hearing. The rebellion of Bar Coffba in 132. Papyrus includes the unofficial record of the hearing. This is related to many individual prosecutions, including specific Gadarias and Sauros. Avoid the empire Finances (Ministry of Finance dominated by the emperor).

1, 900 years ago Papil Scotton. Image credit: Shai Halevi.

Papyrus in question was found in the 1950s in one of the Nahal Haber caves in the Jewish desert.

Initially, this document, which had been misaligned as a Nabatea, remained unnoticed until Hanna Cotton Pargi of Hebrew University was rediscovered in 2014.

Currently, Papirus, which is called Papir Scotton, is the longest Greek document in the Jewish desert because it exceeds the 133 lines.

Professor Cotton Parciel, Austrian Science Academy, Vienna University, and Hebrew's colleagues say that this document says the prosecutor in front of the Roman officials (132-136 CE) of the Roman officials (132-136 CE) the night before the bar. I judged that it was represented. A transcript that was rapidly drafted by the judicial hearing itself.

The language is full of lively and direct, and one prosecutor has advised another prosecutor on the strength of various evidence and predicts the objection.

“This papyrus is extraordinary to provide direct insights in preparing for trials in the Roman Empire,” said Dr. Anna Dorgano, Austrian Science Academy.

“This is the best documented Roman court lawsuit from Jews apart from Jesus' trial,” said Dr. Avenner Ecker at Hebrew University.

Papyrus detailed the incidents, which are almost compatible with modern Israel and Jordan, including forgery, tax evasion, fraudulent sales and slave abuse in Juda and Arabia.

The main defendants, Gadarius and Sauros, are accused of corrupt transactions.

Gadaria, the son of a notary public and probably Roman citizen, had a crime, including violence, terrifying tor, counterfeiting, and rebellion.

His collaborator, Sauros, adjusted the fictitious sales and slaves principles without paying the necessary Rome taxes.

In order to hide their activities, the defendant counterfeited documents.

“Falculation and tax fraud have suffered severe penalties under the Roman law, such as intense labor and death penalty,” said Dolgonov.

The criminal case was deployed between the two major Jews uprising to Rome's rule: Jewish Diaspola rebellion (115-117 CE) and Barcova rebellion (132-136 CE).

In particular, this text involved Gadarias and Sauros in rebellious activities during the visit by Emperor Hadrian (129/130 AD), and when Bar Coffba Revolt began, Tanius, the governor of Juda, Tanius.・ It is named Rufus.

With his previous anxiety, the Roman authorities probably have seen the defendant with doubt and linked their crimes to a wider conspiracy against the empire.

“Whether they were actually involved in the rebellion remain unresolved, but the flirting is talking to the charged atmosphere at the time,” said Dolgano.

“The nature of the crime makes a question because it doesn't seem to be a profitable business model,” said Dr. Ecker.

“The origin of the slaves is unknown, but this case may include the Bible's duty of the Jews of illegal trafficking or reimbursing the slaves. “

Papyrus provides new insights on the Roman method of the East Empire speaking in the Greek, referring to the governor of the Jewish Assazazi Tour and the Forced JU Service.

“This document indicates that the Core Roma institution, a documented in Egypt, is being implemented throughout the empire,” Mitthof said.

“Papyrus also introduces the ability to regulate private transactions in Roman in remote areas.”

“In the Kokhba Revolt, the caution was a mystery, which is likely to have been born from a hideaway cave in the Jewish desert, and the results of the trial may have been interrupted by rebellion.”

Team paper Published in the journal Thai

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Anna Dolgano et al。 2025. Falculation and fiscal fraud in the night before the bar: A memorandum of Roman officials (P.Cotton) and the minutes of trial. Thai 38; DOI: 10.25365/tyche-2023-38-5

Source: www.sci.news

Ancient Byzantine Monastery Unearthed in Israel Revealing Vibrant Mosaic Floor

Archaeologists from the Israel Antiquities Authority (IAA) have discovered the remains of a Byzantine monastery with a colorful mosaic floor and Greek inscriptions, an ancient wine press, and other buildings at the Israel Antiquities Authority, Kiryat Gat, Israel.



IAA archaeologists clean ancient mosaics in a Byzantine monastery in Kiryat Ghat, Israel. Image credit: Emil Aladjem, Israel Antiquities Authority.

“This is the largest and most important Roman and Byzantine site ever discovered in this region,” IAA archaeologists Sheila Lifshitz and Marjan Margulis said in a statement.

Blessed are you when you come in, and blessed are you when you go out (Deuteronomy 20:6).. ” This was written on the floor of a colorful monastery discovered during extensive excavations carried out before the establishment of a new district north of the modern city of Kiryat Ghat. ”

Researchers found the remains of at least 10 buildings, including a monastery, a wine press, and a large warehouse building.

“The monastery dates back to the Byzantine period (5th-6th century AD) and is part of an ancient site that already existed in Roman times and lasted for about 600 years,” they said.

“The monastery and its surroundings retain a large amount of imported pottery, coins, marble elements, and metal and glass vessels, all of which testify to the presence of a rich and important community here. I am.”

“The mosaic floor of the monastery is decorated with crosses, lions, doves, amphorae, flowers, and geometric patterns.”

The research team also discovered a sophisticated wine press that had been built and repaired many times over the years.

The mosaic floor of the fermentation chamber and recovery tank incorporates blue and white stones.

The floor of the north collection tank was made of slabs, on some of which you can still see the Greek letters used to mark the masonry of the winepress builders.

All these features indicate that the construction and development of this winery required a lot of money, time, and the work and efforts of various professionals.

“Early settlements were located at the intersection of central roads connecting mountainous areas and coastal plains,” the scientists said.

“It was clearly serving small communities and passing tourists in the area.”

“This is the largest and most important Roman and Byzantine ruin discovered in the area.”

“This discovery indicates that there was a series of settlements from the early Roman period (1st century AD) to the end of the Byzantine period (late 6th century AD).”

Source: www.sci.news

New discoveries from Pompeii unveil the lavish lifestyles of the ancient elite

Recently, archaeologists uncovered the ancient city of Pompeii, preserved under volcanic ash for around 2,000 years.

The discovery of a massive private bathhouse, believed to be the largest in the city, by an international team of experts has shed new light on Pompeii’s reputation for innovation and wealth.

The baths included hot and cold rooms, intricate artworks, a large pool, and the capacity for up to 30 people, along with workers on site.

Within a small room, the remains of two individuals – a male slave and a high-status woman – were found.

Dr. Sophie Hay, an archaeologist working at the excavation site, stated, “This site truly brings the past to life, revealing the stark disparities in Roman lifestyles within these ruins.”

One of the excavation sites discovered during the work – Credit: BBC / Lion TV

In addition to the baths, a complete block of Pompeii was unveiled, featuring a grand house with direct access to a laundry, bakery, and bathhouse, all likely belonging to wealthy politician Aulus Rustius Verus.

The direct connection between the bathhouse and the house suggests it was a venue for private gatherings, a luxury reserved for the affluent in Pompeii.

Skeleton discovered next to set of coins during excavation – Credit: BBC/Lion TV

The discovery also revealed advanced technological features in the city, like a boiler room with a system of pipes distributing water from the road, highlighting Pompeii’s engineering progress.

The contrast between the affluent luxuries of the bathhouse and the toil of slaves in the boiler room is a poignant reminder of social inequality in Roman society.

These earrings discovered during excavations are thought to belong to wealthy individuals – Credit: BBC/Lion TV

The bodies of two individuals in a room exemplify this inequality, with valuable items found with the high-status woman but signs of labor on the young man’s body, suggesting different social statuses. The woman likely perished in the volcanic eruption, while the man died from a collapsing wall.

Despite nearing the end of the excavation, the possibility of further discoveries remains open as the team delves deeper into the site.


For more insights, tune in to BBC Two’s documentary, “Pompeii: New excavations – House of Treasures,” airing on Monday, January 20th at 9pm.


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Source: www.sciencefocus.com

Possible Title: Potential Evidence of ‘Sun Stones’ Used by Ancient Societies to Combat Volcanic Winters

A stone tablet with a sun motif discovered on the Danish island of Bornholm

Antiquity Publications/John Lee, National Museum of Denmark

Hundreds of mysterious carved “sun stones” excavated in Denmark may have been ritually buried after the sun disappeared in a volcanic eruption around 2900 BC.

A total of 614 stone tablets and fragments inscribed with decorative motifs of the sun and plants have been unearthed in recent years. Basagard West Ruins Located on the island of Bornholm in Denmark. They were discovered in geological formations dating back some 4,900 years, when Neolithic people were farming the region and building enclosures surrounded by earthworks of banks and ditches.

Most of the carved sun stones were found in ditches around these enclosures, which were covered with cobblestones containing pottery shards and other items. This pottery is typical of the Late Funnel Beaker culture, which existed in the area from about 2900 to 2800 BC.

It was originally proposed that the stone carving of the sun was buried to ensure a good harvest. They say the sun was central to early Nordic agricultural culture. Rune Iversen at the University of Copenhagen, Denmark.

“But why did they store all these images at the same time?” Iversen asks. “The last thing they basically did here was deposit these sun stones and cover them with animal bone fragments and all kinds of artifacts and stuff like that. And then it went from trench to trench. You can see it being repeated. So it's some kind of action or event.”

Now he and his colleagues have found the answer. They looked at data from ice cores taken in Greenland and Antarctica and found that high concentrations of sulfate were deposited in the years following volcanic eruptions around 2900 BC.

Researchers say the relative proportions of sulfate deposition in Greenland and Antarctica suggest the eruption was somewhere close to the equator, and its effects appear to have spread over a vast area. . Ash clouds may have blocked out the sun and cooled temperatures for years.

A severe cold period around 2900 B.C. is supported by sources such as preserved wood rings from the Main River Valley in Germany and long-lived rock pine tree rings from the western United States.

This eruption would have had a devastating impact on the Neolithic peoples of northern Europe. “If we don’t have a harvest and the crop is not accepted, we won’t be able to sow anything next year,” Iversen says. “They must have felt quite punished at the time, because endless catastrophe was just going to befall them.”

He and his colleagues say burying the sculptures may have been an attempt to bring back the sun, or a celebration after the skies finally cleared.

say “that's a good explanation” jens winter johansen At the Roskilde Museum in Denmark. “There is no doubt that our staunchly agricultural society must trust the sun.”

Lars Larsson Researchers from Sweden's Lund University asked why, if climate impacts are widespread, evidence of such behavior is only found on Bornholm and not elsewhere in southern Scandinavia. Ta.

That may be because the people there had an abundance of slate, a hard stone with which to carve statues of the sun, whereas much of the rest of southern Scandinavia is mostly clay and has fewer stones suitable for carving. The body, Iversen says. “They may have carved wood or leather from other locations,” he says, but these would not normally have been preserved.

Or it may reflect cultural differences, Johansen says. “These societies are not isolated, but they are more isolated on the islands. That may be why they developed their own customs and culture.”

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Source: www.newscientist.com

New Genetic Findings Show Women’s Empowerment in Ancient Britain Before Roman Rule

Late Iron Age Durotrigan burial at Winterbourne Kingston, Dorset, England

bournemouth university

Genetic analysis of people buried in a 2,000-year-old cemetery in southern England supports the idea that Britain’s Celtic communities were dominated by women, finding that while men immigrated from other communities, women indicates that they stayed in their ancestral home. It lasted for centuries.

The study supports growing archaeological evidence that women held high positions in Celtic societies across Europe, including Britain, and that Mediterranean audiences often found it difficult to describe Celtic women as having power. This gives credence to the Roman accounts, which were often thought to be exaggerated.

Since 2009, Durotrygean skeletons have been unearthed during excavations of an Iron Age burial site in Winterbourne-Kingston, Dorset, England. The Durothrigeans occupied the coast of south-central England from about 100 BC to 100 AD, and probably spoke a Celtic language.

Human bones from Iron Age Britain are rare because they were destroyed by common funerary practices such as cremation and burial of bodies in bogs. However, the Durotrige buried their dead in formal cemeteries in the chalk landscape, which helped preserve them. Archaeologists have found that Durotrigan women were often buried with valuables, suggesting a high status and perhaps a female-centered society.

Lara Cassidy Doctors from Trinity College, Dublin, have now analyzed the genomes of 55 Winterbourne-Kingston Durotrigans to determine how they are related to each other and to other Iron Age peoples in Britain and Europe. I found out how they are related.

Cassidy says there were two big “aha” moments. Both were associated with mitochondrial DNA. Mitochondrial DNA is a small loop of DNA that is inherited only through the maternal line because it is passed through the egg cell and is not integrated with other DNA.

Once each individual’s mitochondrial DNA results were obtained, the researchers noticed that the same genetic sequences appeared over and over again. More than two-thirds of the individuals were found to be descended from a single maternal line, descended from a common female ancestor several centuries ago.

“At that moment, my jaw dropped,” Cassidy says. “This was a clear sign of matrilocality, a husband moving to live with his wife’s family, a pattern never before seen in prehistoric Europe.” Father locality moving into the community is the norm.

To find out whether the maternal localization pattern was a phenomenon peculiar to the Durothrigues, or whether it might have been more widespread across Britain, Cassidy uses an earlier large-scale study of Iron Age Britain and Europe. I started looking into genetic research data. Her jaw dropped again. She found that in cemeteries across Britain, most people were maternal descendants of a small number of female ancestors.

Cassidy said there is growing evidence that Iron Age women were relatively powerful. “Nativeness typically co-occurs with cultural practices that benefit women and integrate them into family support networks,” she explains.

In modern societies, matrilocality is associated with increased female involvement in food production, increased paternity uncertainty, and longer periods of male absence. In such societies, it is men who migrate to new communities as relative strangers and become dependent on their partners’ families for their livelihood.

“Although men typically still occupy formal positions of authority, women can wield significant influence through their strong matrilineal kinship networks and central role in local economies,” says Cassidy.

Cassidy’s team also compared the British DNA dataset with data from other European sites, revealing repeated waves of migration from the continent, consistent with archaeological evidence. This is because southern Britain was a hotspot of cultural and genetic exchange during the Bronze Age between 2500 BC and 1200 BC and during the Late Iron Age influx of the previously unknown Durothrigid period. showed that it was.

Previous research had suggested that Celtic languages probably arrived in Britain between 1000 BC and 875 BC, but this new discovery expands that possibility. “Celtic languages may have been introduced multiple times,” Cassidy said.

“This is very exciting new research and will revolutionize the way we understand prehistoric societies,” he says. Rachel Pope from the University of Liverpool, UK, previously found evidence of female-dominated kinship relationships in Iron Age Europe. “What we’re learning is that the nature of pre-Roman European society was actually very different.”

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Source: www.newscientist.com

Ancient DNA analysis uncovers Ukraine’s intricate genetic history

To study the history of migration and movement in the Ukrainian region, with a particular focus on Iron Age and Medieval migrant populations, the scientists generated genomic data on 91 individuals from around 7000 BC to around 1800 AD. Their results show that ancient peoples had diverse ancestry as a result of frequent migration, assimilation, and contact.



A map showing the geographical location of the ancient figures included in the study and a chronology showing the dates of the figures in the archaeological group. Image credit: Saag others., doi: 10.1126/sciadv.adr0695.

Over the centuries, migration has taken place in the steppe and forest-steppe regions of Ukraine in several directions.

These migrations were driven by a variety of processes, including cultural contacts and conflicts between tribes, trade, demographic pressures, and the expansion of nomadic areas of influence.

The main migration flows were from the Carpathian-Donabian region, the Southern Ural-Volga region, Central Asia and the North Caucasus, and intensive population movements also occurred within the territory of Ukraine.

At the end of the Bronze Age and the beginning of the Early Iron Age, the most notable archaeological activity in the northern Pontic Steppe was Cimmerian and military operations in Asia Minor.

The Cimmerians were followed by Scythians and SarmatiansEarly Iron Age political and military tribal confederations with various combinations of local and East Asian ancestry, as shown by previous ancient DNA (aDNA) studies. At this time, the northern Black Sea coast was covered with a network of urbanized Greek colonies.

In the forest-steppe region, the modern sedentary population is influenced by the former Tsinets culture (including the Lusatian and Vysotska cultures) and the central European influences of the Hallstatt and La Tène periods (Illyrians, Thracians, Celts). It was related.

According to written and archaeological sources, the peoples considered to be the predecessors of the Slavs were Zarbinetska culture — Already existed in the Ukrainian region from the 3rd century BC onwards, during the La Tène and Roman times.

The beginning of the era of migration in the Ukrainian region is associated with the arrival of Germanic tribes such as the Goths and the formation of a multiethnic state. Culture of Cherniahivwhich also included other ethnic groups that already lived in the area.

Between the 2nd and 4th centuries AD, the nomadic Huns of Central Asia emerged on the northern Pontic Steppe, and their westward migration brought about significant economic, cultural, and social changes in Europe.

This period is associated with the emergence of a new ethnolinguistic group, the Slavs, who spread across much of Eastern Europe between the 5th and 7th centuries AD.

From the 8th to the 10th century AD, large parts of Ukraine were under its control. Khazar Khaganate.

In Ukrainian archeology, this is expressed as follows: saltive cultureit is believed that it was shared among multiple ethnic groups (Alans, Bulgars, Turks, Slavs, Magyars, etc.).

At the same time, there was a process of unification of the Slavic tribes, and in the 9th century AD, Kiev Rus was formed.

The development of Slavic states took place against the background of constant nomadic invasions from the east.

Between the 11th and 13th centuries AD, waves of Pechenegs, Turks, and Cumans invaded the northern Pontic region from Central Asia. The most substantial invasion in terms of military power and results was that of the Mongols of the Golden Horde. 13th century AD.

By the 15th century AD, remnants of the Golden Horde, such as the Nogai, still lived in the steppes of northern Pontus.

Since the 16th century. In the Western era, Slavs were the majority ethnolinguistic group in the Ukrainian region.

“We decided to investigate the genetic ancestry of people who lived in the northern Pontic region during these times and were associated with different cultural groups,” said lead author of the study and co-author of the University of Tartu and University of Tartu. said Dr. Letty Saag, a researcher at College London. And my colleagues.

For the study, the authors extracted and sequenced DNA from tooth roots and bone fragments from 91 people at 33 archaeological sites in present-day Ukraine.

The sample included one Neolithic individual (7000–6000 BC), nine individuals from the Bronze Age and the beginning of the Final Bronze Age to the beginning of the Iron Age (3000–700 BC), and six individuals from the beginning of the Early Iron Age. contained the name (900-700 BC), 29 people of the Early Iron Age Scythian period (700-300 BC), 6 people of the Early Iron Age (700-300 BC), the end of the Iron Age (400-1 BC). , 12 from the Late Iron Age (1-400 AD), 9 from the Early Middle Ages (800-900 AD), and from the Middle Ages to B.C. 19 Early modern period (900 to 1800 AD).

Their DNA analysis shows that ancient peoples had diverse ancestry as a result of frequent migration, assimilation, and contact.

“From the Mesolithic to the time of the Vysotska and Vylozerska cultures at the end of the Bronze Age, the proportion of large-scale ancestry was similar to modern populations in other parts of Europe, first as hunter-gatherers and then as early farmers. and finally a mixture of the two: early farmers and steppe pastoralists,” the researchers said.

“From the Cimmerian period to the Middle Ages, the appearance of eastern nomads in the Pontic region became a common occurrence.”

“Their genetic make-up ranges from Yamuna-like superimposition on indigenous peoples, such as the Scythians and Cumans, to highly East Asian ancestry and minimal indigenous ancestry, such as the Alan Bulgars and Nogais. They ranged from mixed race to mixed race.”

“At that time, nomadic groups were recorded in the steppe regions, but the people of other parts of the Ukrainian region had mainly European ancestry, with connections to local ancestors and Thracians, Greeks, Goths, etc. there were.”

“The palincest of migration and population mixing in the Ukrainian region contributes to high genetic heterogeneity in geographically, culturally and socially homogeneous populations, and between individuals from the same place, at the same time, and with the same characteristics. “Different genetic profiles will exist,” they added.

“Our study focuses specifically on historically attested migrant populations rather than local populations, and the sampling is geographically biased primarily towards eastern Ukraine and temporally towards the Iron Age and Middle Ages. It is important to note that

“Nevertheless, a large local genetic profile similar to modern Ukrainians persists in the region through time and within this sample set.”

“This ancestral structure can be traced back at least to the Zurbunas, and is also found in the Vysotskas and Lusatians, the Scythians of the west, the modern agricultural peoples of the east, the Chernyahivs, and even the medieval and early modern Slavs.”

“We infer that there has been a major indigenous component in the ancestry of Ukrainians since at least the Bronze Age, although there are clear traces of high migration activity, including immigration from East Asia and extensive admixture. ”

of findings Featured in this week's diary scientific progress.

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Letty Thurg others. 2025. Crossroads of the Northern Pontus: Migration of Ukraine from the Bronze Age to the Early Modern Period. scientific progress 11(2);doi: 10.1126/sciadv.adr0695

Source: www.sci.news

Ancient silver coins dating back 1,000 years discovered in Britain’s treasure trove

An archaeologist from Oxford Cotswold Archeology (OCA) has made an exciting discovery of 321 11th-century AD silver coins (319 full pennies and 2 cut halfpence) in mint condition near the site of a future nuclear power station on the Suffolk coast. This finding sheds light on the social and political unrest of the 11th century and suggests that the change of government following the coronation of Edward the Confessor in 1042 caused significant turmoil among the population. This collection may have belonged to a local influential figure who felt threatened by the political changes and chose to bury his wealth as a precaution.

A treasure trove of 1,000-year-old silver coins. Image credit: Oxford Cotswold Archaeology.

The newly discovered cache of coins was carefully wrapped in cloth and lead.

The coins in the hoard were issued during the reigns of Harold I “Rabbit’s Foot” (1036-1040), Harthacnut (1040-2), and Edward the Confessor (1042-1066).

Most of the coins date back to the reign of Harold I, with Harthacnut issuing significantly fewer, and only 24 issued by Edward the Confessor.

While the majority of coins were minted in London, some were also minted in Thetford, Norwich, Ipswich, Lincoln, and Stamford.

A few coins were issued by smaller mints such as Langport and Uxbridge in southwest England, making them extremely rare.

“This hoard of coins offers a valuable glimpse into the historical context of that era, indicating that Edward the Confessor’s ascension to the throne was a time of uncertainty and societal unrest. This further supports the idea that it was a period marked by apprehensions,” said Alexander, a coin expert from OCA.

“The analysis of this coin hoard was a collaborative effort involving experts in numismatics, finds, conservation, and project partners.”

“It is a privilege to contribute to bringing this story to life.”

Despite representing considerable wealth for the time, these coins likely belonged to individuals of moderate status rather than high-ranking individuals.

They were probably a savings pot of a local influencer and were roughly equivalent in value to a small herd of cattle at that time.

“The hoard was affectionately named Masu for obvious reasons, so discovering it was truly an honor,” said OCA archaeologist Andrew Pegg.

“When I unearthed it, I saw the edge of a coin peeking out, and I was amazed!”

“It’s an impeccable archaeological time capsule,” he added.

“The insights we’re gaining from it are remarkable, and I am proud to contribute to the history of my corner of Suffolk.”

The mid-11th century in England was a period of uncertainty and shifting loyalties.

Edward the Confessor’s coronation in 1042 followed over 25 years of rule by Danish kings Canute, Harold, and Harthacnut. This event reinstated the House of Wessex on the English throne.

The change in leadership likely sparked uncertainty and apprehension among the populace.

Specifically, some affluent individuals connected to the previous regime were either exiled or had their assets seized after Edward’s coronation.

The hoard’s owner may have buried his wealth in fear of political changes, hoping to retrieve it later as a safety net.

“We may never fully understand why this treasure was left undiscovered,” concluded the archaeologists.

“The discovery of an 11th-century coin hoard is truly extraordinary,” said Damien Leydon, Site Delivery Director at Sizewell C.

Source: www.sci.news

Ancient tattoo designs on mummies revealed by shining laser

The tattooed hand of a 1200 year old mummy from Peru

Michael Pittman and Thomas G. Kaye

Laser scanning of a South American mummy reveals the intricate details of a tattoo dating back more than 1,200 years.

The mummy, belonging to a pre-Hispanic tribe known as the Chancays, was discovered in 1981 at the Cerro Colorado cemetery in Peru’s Huaura Valley.

It was obvious to the naked eye that many of the 100 mummies were tattooed, but the ink smeared beyond the boundaries of the original design and faded, making it impossible to see what the original markings looked like. It was impossible.

In a new study, michael pitman Researchers at the Chinese University of Hong Kong shined a laser on the specimens in a dark room and took long-exposure photographs. The laser brightened the skin and created a sharp contrast with the non-fluorescent tattoo ink.

This technique, which does not damage mummies, has never been used for tattoos before. Importantly, Pittman says, it shows not only where the ink is on the surface, but also where it is in the deeper layers of the skin.

“This allowed us to see the bleeding that had accumulated over the lifetime of the tattoo owner and reveal the original, finer design of the tattoo,” he says.

Researchers say the tattoo is so minute that it must have been created using a needle-and-ink technique using cactus needles or sharp animal bones, rather than a “cut-and-fill” method. That’s what I think.

Tattoos appear to have been important to the Chancay people, Pittman said, as they appear on the majority of known mummified human remains.

Forearm with Chancay mummy tattoo

Michael Pittman and Thomas G. Kaye

“Many of the designs, which are geometric patterns featuring triangles and diamonds, are also shared in other art mediums such as pottery and textiles, and some ceramic figures show geometric tattoo designs. Some are,” he says.

Some tattoos have intricate designs that seem to require special effort, while others are small and simple. “Thus, ancient Chancay tattoos show some similarities with the variations in design and significance that can be observed in tattoos today,” Pittman says.

Pittman says many traditional tattoos made by other ancient peoples can also be viewed in detail using laser-stimulated fluorescence technology. “We therefore plan to apply this method to other ancient tattoos from cultures around the world and try to make other interesting discoveries,” he says.

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Source: www.newscientist.com

Ancient forests hidden beneath the Rocky Mountains emerge as ice melts.

exposed white bark pine

Gregory Pederson

Melting ice in the Rocky Mountains has led to the discovery of a 5,900-year-old white bark pine forest. Scientists discovered more than 30 trees during an archaeological survey on Wyoming's Beartooth Plateau at about 3,100 meters above sea level, 180 meters above the current tree line.

This, he says, “allows us to learn about past conditions at high altitudes.'' Kathy Whitlock at Montana State University. Japanese white pine (Albicari pine) These plants needed to grow during warmer weather, she says, because they don't currently grow at this elevation.

To understand the history of the lost forests, Whitlock's team analyzed tree rings and used carbon dating to find out how old the forests were. They discovered that the tree lived between 5,950 and 5,440 years ago, a time when temperatures were steadily dropping.

Data from ice cores in places like Antarctica and Greenland suggest that these temperature drops were influenced by centuries of volcanic eruptions in the Northern Hemisphere. These produced enough aerial deposits to block sunlight and lower global temperatures until the environment became too cold for these high-altitude trees to survive.

Although the newly discovered tree was lying flat, it was in exceptional condition, indicating that it was rapidly preserved after death. Although there is no evidence of avalanche cover, there are traces consistent with the current expansion of the ice sheet.

Climate models suggest that more continuous volcanic eruptions occurred in Iceland 5,100 years ago, causing further temperature drops, team members say Joe McConnell at the Desert Research Institute in Nevada. These temperature drops led to the expansion of the ice belt, and “the fallen trees were buried in the ice and protected from the elements for the next 5,000 years,” he says.

Only in recent decades have temperatures warmed enough to free trees from their ice cellars. The current tree line is “likely to shift upward as temperatures rise in the coming decades,” Whitlock said.

“This discovery was made possible thanks to anthropogenic climate change. Rising temperatures are exposing areas that have been buried under ice for thousands of years,” she says. “While discoveries like this are scientifically interesting, they are also a sad reminder of how vulnerable alpine ecosystems are to climate change.”

“This study is a very elegant and careful use of a rare 'time capsule' that tells us not only about these mountain forests 6,000 years ago, but also about the climatic conditions that allowed them to exist.” '' he says. Kevin Antukaitis at the University of Arizona.

These trees are not the first such finds that researchers have unearthed from Rocky Mountain ice. Previous research had found “fragments of wooden shafts used for arrows and darts,” Whitlock said. One of the shafts has been radiocarbon dated to be more than 10,000 years old, “which tells us that people have been hunting in high-altitude environments for thousands of years,” she says.

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Source: www.newscientist.com

UAV Technology Reveals Hidden Secrets of Ancient Mega-Fortress in Southern Georgia

High-resolution UAV-based aerial survey of the massive Bronze Age fortress Domanissis Gora in Georgia, South Caucasus, reveals the extent of a large external fortification system and settlements that are largely undocumented in the region. The exceptional size of D. gora helps add a new dimension to population assembly models in Eurasia and other regions.



Aerial photo of the Domanisis Gora ruins. It shows where two canyons meet. Excavation work on the inner fortress in 2023 is visible in the foreground. Image credit: Nathaniel Erb-Satullo.

Fortified settlements in the South Caucasus appeared between 1500 and 500 BC and represent an unprecedented development in the region’s prehistory.

Located on the border between Europe, the Eurasian steppe and the Middle East, the Caucasus region has a long history as a crossroads of cultures with a unique regional identity.

In a new study, archaeologists focused on Domanisis Gora, a 60-80 hectare fortified settlement in Georgia that is exceptional in its preservation and size.

Dr. Nathaniel Erb Satullo of the Cranfield Institute of Forensic Sciences at Cranfield University and his colleagues wrote: “The fortifications of Domanisis Gora consisted of a double-walled fortified core and a much larger outer shell with additional fortifications. “There is,” he said.

“Two steep-sided gorges, 60 meters deep in places, supplement the defensive walls.”

“Previous research had noted that the site had an unusually large walled enclosure, but the site had not been systematically mapped.”

The researchers used the DJI Phantom 4 RTK drone, which can provide less than 2 cm relative position accuracy and very high-resolution aerial imagery.

To obtain high-precision maps containing man-made features, each feature in the aerial images was carefully checked to confirm its identity.

To understand how the landscape at the site has evolved, the orthophotos were compared to 50-year-old photos taken by a Cold War-era reconnaissance satellite that was declassified in 2013.

This gave scientists much-needed insight into which features are recent and which are old.

The team was also able to assess which areas of the ancient settlement were damaged by modern agriculture.

All of these data sets were integrated into geographic information system (GIS) software to help identify patterns and changes in the landscape.

“The drone takes approximately 11,000 photos and uses advanced software to combine these photos with a high-resolution digital elevation model and orthophotos, which show every point as if looking directly down. We created a composite photo,” said Dr. Elvusaturo.

The researchers found that the Domanisis Gora ruins were more than 40 times larger than originally thought, and included a large outer settlement protected by a kilometer-long wall.

“Using a drone, we were able to understand the importance of the site and document it in a way that would not be possible on the ground,” said Dr. Herv Saturo.

“Domanisis Gora is not only an important discovery for the South Caucasus region, but also has broader significance for the diversity of large-scale settlement structures and their formation processes.”

“We hypothesize that Domanicis gora may have expanded through interaction with mobile pastoral groups, with large settlements outside it expanding and contracting seasonally.”

“The site has now been extensively mapped and further research will be initiated to gain insight into areas such as population density and density, livestock movements and agricultural practices.”

The team’s paper was published in a magazine ancient.

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Nathaniel L. Erb-Saturo others. Megaforts of the South Caucasus: New data from southern Georgia. ancientpublished online on January 8, 2025. doi: 10.15184/aqy.2024.197

Source: www.sci.news

Ancient molluscs challenge our stereotypes: punk and emo fossils defy conventional perceptions

Digital model of an ancient mollusk punk ferox and emo swirl, Created from X-ray scans of fossils

Sutton et al. Nature (2025)

Two prehistoric marine mollusk fossils with distinctive spiky 'hairstyles' have been discovered and named. punk and Emotional.

Its strange appearance highlights the ancient diversity of molluscs, which today include creatures such as snails, slugs, clams, and octopuses.

“Some people may have a bit of a soft spot for molluscs. My partner called them loser animals, but they are one of the really important areas of life.” he says. mark sutton At Imperial College London.

He and his colleagues unearthed artifacts dating back 430 million years at a British site known as . herefordshire lagerstedt.

The fossil, from a group of molluscs known as Aculifera, was so delicate that researchers couldn't simply crack open the stone it contained.

Instead, Sutton and his colleagues use X-ray scans to identify structures inside rocks, slice the material thinly and photograph each layer, and combine the images to show what living things might look like. A 3D image was created. Both were earthworm-like animals with long spines about 2 centimeters long.

Sutton said the music-related nickname was originally a pet name. The name stuck and was officially proposed because the spike-laden fossil was reminiscent of the hairstyle of the punk rock movement. punk ferox and emo swirl.


“The spikes are probably primarily for protection,” Sutton said, but it's also possible that the spikes formed because the creatures needed to remove calcium buildup in their bodies while living in the ocean. be. In many cases, he says, such hard protrusions can serve both purposes.

Researchers don't quite understand how punk The specimen was moved, but the specimen emo It is preserved in a folded state, suggesting that it increments like a caterpillar. emo It also had many sturdy downward-pointing spines on its back, which may have acted as ratchets to aid movement, Sutton said.

These spines would have stopped it from sliding backwards in the sediment as it turned, ensuring it moved forward, he says. “This inching has never really been shown in any fossils before,” Sutton said.

“I love the name; it fits these spiky mollusks,” he says. luke parry at Oxford University. “Molluscan fossils that preserve soft tissue like this are extremely rare, so seeing in 3D what these rare and ancient animals looked like is truly spectacular. It’s like a treasure trove, like the Pompeii of insect-eating molluscs.”

He agrees that the spikes were likely primarily for protection, since both species were definitely moving around on the ocean floor rather than burrowing.

topic:

Source: www.newscientist.com

Studies show that lead contamination in ancient Rome could have decreased average intelligence levels.

overview

  • Lead pollution likely lowered the average IQ of ancient Rome by 2.5 to 3 points, a study has found.
  • The study is based on analysis of lead concentrations in ice cores taken from Greenland.
  • The findings provide evidence that lead may have contributed to the fall of Rome, an issue that historians and experts have debated for decades.

In ancient Rome, toxic lead was so prevalent in the air that it likely lowered the average person’s IQ by 2.5 to 3 points, a new study suggests.

The study, published Monday in the Proceedings of the National Academy of Sciences, adds to long-standing questions about what role, if any, lead pollution played in the collapse of the empire.

The authors link lead found in Greenland ice samples to ancient Roman silver smelters and determine that the incredible background pollution they produced would have affected much of Europe. .

Researchers used research on lead exposure in modern society to determine how much lead was likely in the Romans’ bloodstream and how it affected their cognition. was able to judge.

Lead, a powerful neurotoxin, remains a public health threat today. There is no safe amount to ingest into the body. Exposure is associated with an increased risk of learning disabilities, reproductive problems, mental health problems, and hearing loss, among other effects.

The researchers behind the new study said the discovery was the first clear example in history of widespread industrial pollution.

“Human and industrial activities 2,000 years ago were already having a continent-wide impact on human health,” said the study’s lead author, a researcher at the Desert Research Institute for Climate and Environment, a nonprofit research campus in Reno, Nevada. said scientist Joe McConnell. . “Lead pollution in Roman times is the earliest clear example of human impact on the environment.”

Stories of ancient pollution are buried in Greenland’s ice sheet.

Ice cores are extracted from the Greenland ice sheet.
Joseph McConnell

The chemical composition of ice there and in other polar regions can yield important clues about what environments were like in the past. As snow falls, melts, and compacts to form a layer of ice, the chemicals trapped inside provide a kind of timeline.

“In environmental history, you’ve been building this layer cake every year,” McConnell said.

By drilling, extracting and processing long cylinders of ice, scientists can measure properties such as carbon dioxide in the atmosphere in past climates or, as in this case, lead concentrations over time.

Researchers analyzed three ice cores and found that lead levels rose and fell over roughly 1,000 years in response to important events in Rome’s economic history. For example, levels rose when Rome organized its rule over what is now Spain and increased silver production in the region.

A longitudinal ice core sample awaits analysis for lead and other chemicals at the Desert Research Institute in Reno, Nevada.
Jesse Lemay / DRI

“For every ounce of silver produced, 10,000 ounces of lead can be produced,” McConnell said. “Just as they produced silver, the Romans were smelting and mining silver for coinage and economy, and they were introducing large amounts of lead into the atmosphere.”

McConnell said lead attaches to dust particles in the atmosphere during the smelting process. A small portion of those particles were blown away and deposited in Greenland.

Once researchers determined how much lead was concentrated in Greenland’s ice, they used a climate modeling system to determine how much lead the Romans would have released to pollute Greenland to observed levels. I calculated the amount.

The research team then analyzed modern information on lead exposure to determine the health effects of atmospheric lead during the Pax Romana, a period of peace in the empire that lasted from 27 BC to 180 AD. has been identified.

Ice samples on a melter during chemical analysis at a desert laboratory.

The researchers found that average lead exposure is about one-third of what it was in the United States in the late 1970s, when leaded gasoline use was at its peak and before the Clean Air Act was enacted. Lead levels in Rome were about twice what American children are exposed to today, McConnell said.

Researchers believe that people who lived closest to silver mines on the Iberian Peninsula (now Spain) would have had the most lead in their blood.

“Virtually no one got away,” McConnell said.

However, these results likely do not tell the full story of the health effects of lead in ancient Rome. This is because Romans were exposed through other sources, such as wine sweetened in lead-lined vessels, lead piping, and lead goblets.

Dr. Bruce Lanphear, lead expert and professor of health sciences at Canada’s Simon Fraser University, said lead was “ubiquitous” in ancient Rome. He was not involved in this study. Therefore, the new study is limited because it only assesses lead in the atmosphere, he said, and the authors acknowledge that.

A lead toy unearthed from the grave of Julia Graphis in Brescello.
DeAgostini/Getty Images

“Their estimate is likely an underestimate,” Lanphear said.

Still, the study provides evidence that lead exposure may indeed have played a role, so the findings raise questions about how lead may have contributed to the decline of ancient Rome. may stimulate the ongoing debate.

Historians and medical experts have debated for decades whether and to what extent lead contributed to the fall of the empire. Researchers in the 1980s found that the Roman elite He suffered from gout and abnormal behavior due to drinking large amounts of lead-laced wine..

“I believe that lead played a role in the decline of the Roman Empire, but it was only a contributing factor. It was never the only one,” Lanphear said.

Joe Manning, a history professor at Yale University, said most researchers believe Rome fell for a myriad of reasons, including epidemics, economic problems and climate change. Manning said it’s important to remember that ancient Rome was a tough place to survive, with an average lifespan of about 25 to 30 years.

“Under no circumstances do you want to go to a city in the ancient world. That would be the last place you want to go. ,” Manning said. “Reed has really bad hygiene.”

Source: www.nbcnews.com

Ancient Dinosaur Highway Footprints Uncovered in the UK, Dating Back 166 Million Years

Workers excavating clay at a limestone quarry in southern England stumbled upon a unique bump, leading to the discovery of a “dinosaur highway” and approximately 200 tracks dating back 166 million years, as revealed by researchers on Thursday.

Researchers from the University of Oxford and the University of Birmingham unveiled this groundbreaking find after a team of over 100 individuals excavated the Dewars Farm quarry in Oxfordshire in June. This discovery is said to revolutionize previous paleontological research in the area and provide deeper insights into the Middle Jurassic era.

Kirsty Edgar, a professor of micropalaeontology at the University of Birmingham, expressed, “These footprints offer a unique glimpse into the lives of dinosaurs, providing details about their movements, interactions, and the tropical habitats they inhabited.”

Among the series of tracks forming the “dinosaur highway,” four tracks trace the path of sauropods, giant, long-necked herbivorous dinosaurs that reached lengths of nearly 60 feet. The fifth set belonged to Megalosaurus, a fierce 30-foot-long predator with distinctive three-clawed markings, which was the first dinosaur to be scientifically named over two centuries ago.

Workers survey five vast tracks that formed part of the “Dinosaur Highway.”
University of Birmingham (via AP)

Crossing sections where the tracks intersect raised queries about potential encounters between carnivores and herbivores.

Emma Nichols, a vertebrate paleontologist at the Oxford University Museum of Natural History, acknowledged, “Scientists have long studied megalosaurs, but this discovery evidences the existence of further insights into these creatures that are yet to be uncovered.”

Nearly three decades ago, 40 pairs of footprints discovered in a local limestone quarry were deemed among the most significant dinosaur footprints globally. However, as the region is now largely inaccessible, evidence is limited due to the absence of digital cameras and drones during that period.

During the recent excavation, the team captured over 20,000 digital images and utilized a drone to create 3D models of the prints. This extensive documentation could prove valuable for future studies, revealing aspects like the size of the dinosaurs, their gait, and speed.

Duncan Murdoch, a geoscientist at the Oxford Museum, noted, “The preservation of these tracks is so detailed that the deformation of the mud by the dinosaurs’ feet can be observed. Together with other fossils present, such as burrows, shells, and plants, these tracks can reconstruct the muddy lagoon environments the dinosaurs traversed.”

These findings will be showcased in a new exhibit at the museum and will be featured on the BBC’s Digging for Britain next week.

Source: www.nbcnews.com

Ancient mastodon fossil discovered in pristine condition in New York

Paleontologists from the New York State Museum and New York University Orange, New York, unearthed the fossilized remains of an adult mastodon near Scotchtown, New York, USA.

A fossilized adult mastodon jaw discovered near Scotchtown, New York, USA. Image credit: New York State Museum.

mastodon any species of extinct proboscis in the genus mammut.

Although often confused with mammoths, they are more distantly related to living elephants.

These animals diverged from their elephant ancestors about 27-25 million years ago (Oligocene epoch).

They roamed widely throughout North America as well as surrounding areas such as the tropics of Honduras and the Arctic coast of Alaska until they finally became extinct about 11,000 years ago.

Currently, eight species are recognized, including the famous American mastodon (mammut americanum), widely distributed in nearly every state in the United States, Canada, and Mexico.

A well-preserved jaw, part of a toe bone, and rib fragments from an adult mastodon were discovered in the backyard of a home near Scotchtown in Orange County, New York.

The fossils were recovered by a team of paleontologists from the New York State Museum and the State University of New York at Orange.

“The jaw of an adult mastodon was discovered protruding from the topsoil, drawing the attention of homeowners and sparking research that will continue to uncover scientific insights for years to come,” they said. Ta.

“The discovery began when the homeowner found two teeth hidden in the leaves of a plant on the property.”

“Upon further investigation, the homeowner unearthed two more teeth just a few inches underground.”

“This important discovery will deepen our understanding of the region's Ice Age inhabitants and highlight the wealth of prehistoric wonders yet to be discovered.”

This figure shows the reconstruction of the American mastodon (mammut americanum) top. Below is a comparison between an American mastodon and a woolly mammoth (Mammuthus primigenius). Image credit: © George 'Rinaldino' Taichmann.

“When we found the tooth and held it in our hands to examine it, we knew it was something special and decided to call in the experts,” said the resident, who had a prehistoric treasure guarded in his backyard.

“We are thrilled that our property has led to such important discoveries for the scientific community.”

“Although the jaw is the star, additional fragments of toes and ribs provide valuable context and potential for further study,” said researcher Corey Harris-Chair, Ph.D., of the State University of New York at Orange. Ta.

“We also want to further investigate the nearby area to see if there are any more preserved bones.”

More than 150 mastodon fossils have been discovered across the state, about one-third of them in Orange County, an area that remains home to ancient relatives of modern elephants. is a major hotspot.

“This discovery is evidence of New York's rich paleontological history and our continued efforts to understand its past,” said Robert Ferra, Director of Research and Collections and Curator of Ice Age Animals at the New York State Museum. Dr. Neck said.

“This mastodon jaw provides a unique opportunity to study the ecology of this amazing species and will improve our understanding of the region's ice age ecosystems.”

“Fossils are a resource that provide remarkable snapshots of the past, allowing us to reconstruct ancient ecosystems as well as gain better context and understanding of the world around us today.”

“With each discovery like this, we move one step closer to understanding the full story of New York.”

Source: www.sci.news

A new study suggests that Saturn’s rings could be as ancient as the planet itself

Saturn’s icy rings may be much older than they appear, as they are resistant to contamination from collisions with rocky debris.



Hyodo others. This suggests that the apparent youthfulness of Saturn’s rings may be due to resistance to pollution, rather than an indication that they were formed at a young age. Image credits: NASA / ESA / Hubble / A. Simon, NASA Goddard Space Flight Center / MH Wong, University of California, Berkeley / OPAL team.

Saturn’s rings were once thought to be ancient, perhaps forming at the same time as Saturn itself, about 4.5 billion years ago.

Over time, it is thought that the rock and ice particles that make up the ring become dirty and darkened by micrometeorite impacts.

However, when NASA’s Cassini spacecraft reached Saturn in 2004, it observed that Saturn’s rings appeared relatively bright and clean.

“According to the hypothesis that non-icy micrometeorite impacts act to darken Saturn’s rings over time, Saturn’s rings are estimated to be approximately 100 million to 400 million years old. “Cassini observations show that the particles in the rings appear to be relatively clean,” said Dr. Tatsuki Hyodo of Tokyo University of Science and colleagues.

“These younger age estimates assume that the rings formed from pure water ice particles with high accretion efficiency impacting non-ice micrometeorite material.”

In the new study, researchers used a computer model to simulate the collision between a micrometeorite and an ice ring particle.

They found that high-velocity collisions can cause the micrometeorite to evaporate, and that vapor can expand, cool, and condense in Saturn’s magnetic field to form charged nanoparticles and ions.

The researchers’ simulations showed that these charged particles could either collide with Saturn, be dragged into the atmosphere, or escape Saturn’s gravity altogether.

As a result, scientists suggest that little of this material builds up on the rings, keeping them relatively clean.

They say very low pollution levels mean Saturn’s rings are actually billions of years old and are simply maintaining a more youthful appearance. suggests that it is possible.

Although more research is needed, this process may also occur in the rings of Uranus and Neptune, as well as in the icy moons around the giant planets.

“High-velocity collisions leading to the production of charged nanoparticles and ions could potentially occur in places such as the rings of Uranus and Neptune or the icy moons around the giant planets,” the authors said.

“While this mechanism may not change the bulk composition of the impacted target, it suggests that the surface composition may change.”

“Furthermore, the new material from the impactor may not be efficiently incorporated into the satellite’s rings or surface and may be transported elsewhere.”

“Thus, most of the compositional differences observed in the various ring systems of giant planets may be due to their formation processes, for example when building materials come from outside the system, rather than to their post-formation dynamics.” There is a sex.”

of study Published in this week’s magazine natural earth science.

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Takashi Hyodo others. Pollution resistance of Saturn’s ring particles during micrometeoroid impact. nut. earth sciencepublished online on December 16, 2024. doi: 10.1038/s41561-024-01598-9

Source: www.sci.news

An ancient saber-toothed predator roamed 270 million years ago

Reconstruction of the oldest known gorgonopsian

henry sutherland sharpe

The earliest known sabertooths hunted large prey 270 million years ago. The newly discovered remains could help explain how early mammal relatives became warm-blooded animals.

The first land predators usually hunted relatively small prey. But things changed about 273 million years ago, when an event known as the Olson extinction shook ecosystems around the world. Then, much larger terrestrial herbivores began to appear, and predators needed new weapons to dispatch such large prey. Josep Fortuny At the Miquel Cursafont Catalan Institute of Paleontology, Barcelona, ​​Spain.

This may help explain why the fossilized partial skeleton of an ancient predator that Fortuny and his colleagues just discovered on the Spanish island of Mallorca had saber-shaped teeth. These fangs are better suited for injuring larger prey than for grabbing and holding small animals. “This was the first time we had access to this kind of tool for preying on herbivores,” Fortuny said.

Dating back an estimated 270 million years, this predator is the oldest known member of a group of carnivores known as gorgonopsians, all of whom had saber-shaped teeth. The largest gorgonopsids grew to several meters in length, with canine teeth reaching 15 centimeters in length. The Mallorca gorgonopsian was smaller, measuring about 1 meter long and its canine teeth only 5 centimeters long. Fortuny said researchers are waiting to name the new gorgonopsian until they have analyzed the bones and teeth in more detail.

Ancient predators are important not only because of their age. At the time they roamed Mallorca, the island was part of a tropical supercontinent called Pangea, but all known fossils of gorgonopsids date back 270 million years. They come from areas of the world that were at high latitudes. The new discovery suggests that the gorgonopsian actually originated near the equator.

Perhaps adaptations developed there, such as the ability to efficiently hunt large prey, may have allowed them to regulate their body temperature in order to spread into cooler habitats away from the equator.

Fortuny says it’s important to better understand this process because gorgonopsids belonged to the therapsids, a group of animals that also includes mammals. “There’s a lot of debate about the first steps in thermoregulation in this group,” he says.

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Source: www.newscientist.com

Ancient modern human genome successfully sequenced

Scientists sequenced and analyzed the genomes of seven people who lived between 42,000 and 49,000 years ago in Ranis, Germany, and Zlatiks, Czech Republic. As a result, the Ranis and Zlati Kush were linked by distant kinship ties, and that they were part of the same small, isolated group, representing the deepest known split from lineages outside Africa. was shown. The Ranis genome contains a Neanderthal component derived from a single admixture event common to all non-Africans, which the authors date back 45,000 to 49,000 years ago. This means that all non-African ancestors sequenced so far existed in a common population during this time, and further The human remains suggest that they represent a distinct non-African population.

Illustration of the Zlati Kush, who belonged to the same group as the Ranis and had close relationships with two of them. Image credit: Tom Björklund / Max Planck Institute for Evolutionary Anthropology.

Dr. Alev Schumer of the Max Planck Institute for Evolution said, “After modern humans left Africa, they met and interbred with Neanderthals, and as a result, approximately 2 to 3 percent of Neanderthal DNA is present in all areas outside Africa.'' It's in people's genomes.” Anthropology and its colleagues.

“However, little is known about the genetics of Europe's first settlers or the timing of interbreeding between Neanderthals and non-Africans.”

“An important site in Europe is Zlaty Kush in the Czech Republic, where the complete skull of a single individual who lived about 45,000 years ago was discovered and previously genetically analyzed.”

“However, due to the lack of archaeological context, we were unable to link this person to an archaeologically defined group.”

“Ilsenhöhle, located in Ranis, Germany, about 230 km from the nearby site Zlatiks, is known for a particular type of archeology, Rincombi-Ranissian-Jersmanovičian (LRJ), dating back about 45,000 years. ”

“It has long been debated whether the LRJ culture was created by Neanderthals or early modern humans.”

“Although most small bone fragments have been preserved at Ranis, previous research was able to analyze mitochondrial DNA from 13 of these remains, indicating that they belong to modern humans rather than Neanderthals. It turns out.”

“However, because mitochondrial sequences represent only a small portion of genetic information, their relationship to other modern humans has remained a mystery.”

In the new study, the authors analyzed the nuclear genomes of 13 specimens taken from Ranis and found that they represented at least six individuals.

Based on the size of the bones, it was determined that two of the children were infants, and that three were genetically male and three were female.

Interestingly, these individuals included mothers and daughters as well as more distant biological relatives.

The researchers also sequenced more DNA from the female skull found in Zlati Kush, producing a high-quality genome for this individual.

“To our surprise, we discovered that there is a fifth or sixth degree genetic relationship between the two people from Zlati Kush and Ranis,” Dr. Schumer said.

“This means that Zlati Kush is genetically part of an extended family of Ranis and likely created LRJ-type tools as well.”

Of the six Ranis bones, one bone is particularly well preserved, in fact, it is the best preserved modern human bone from the Pleistocene for DNA searches.

This allowed the research team to obtain a high-quality genome from this male individual, called Ranis13.

Together, the Ranis13 and Zlatý kůň genomes represent the oldest high-quality living human genome sequenced to date.

Analyzing genetic variation associated with phenotypic traits, scientists found that Ranis and Zlati Kush individuals carried mutations associated with dark skin and hair color, as well as brown eyes. I did. This reflects the recent African origins of this early European population.

By analyzing parts of the genomes of Ranis and Zlati Kush inherited from the same ancestor, the authors found that their populations consisted of at most a few hundred individuals and were spread over a larger area. We estimate that there is a possibility.

They found no evidence that this small early modern human population contributed to later European or other world populations.

The Zlati Kush/Ranis people coexisted with Neanderthals in Europe, raising the possibility that Neanderthals were among their recent ancestors after they migrated to Europe.

Previous studies of modern humans dating back more than 40,000 years have found evidence of recent admixture between modern humans and Neanderthals.

However, no such evidence for recent Neanderthal admixture was detected in the genomes of Zlati-Kush/Ranis individuals.

Illustration by Zlatý kůň/Ranis group. Image credit: Tom Björklund / Max Planck Institute for Evolutionary Anthropology.

“The fact that no such Neanderthal ancestry remains in Ranis and Zlati Kush, while modern human populations that may have later arrived in Europe inherited such Neanderthal ancestry. is an older Zlati Kush/Ranis lineage This could mean that they entered Europe by a different route or may not have overlapped with the areas inhabited by Neanderthals.''Also Max Planck. said Dr. Kay Pruefer of the Institute for Evolutionary Anthropology.

The Zlati Kush/Ranis population represents the earliest divergence from modern human groups that migrated from Africa and later dispersed across Eurasia.

Despite this early separation, the Neanderthal ancestry of Zlatikush and Ranis derives from the same ancient admixture event that can be detected in all peoples outside Africa today.

By analyzing the length of Neanderthal-contributed segments in the high-coverage Ranis13 genome and using direct radiocarbon dating of this individual, researchers found that this common Neanderthal admixture dates back to 45,000 years ago. It was estimated to be 49,000 years old.

Since all modern non-African populations share this Neanderthal ancestry with the Zlati Kush and Ranis, this means that approximately 45,000 to 49,000 years ago, non-African populations of consistent ancestry still existed. It means you must have done it.

Dr Johannes Kraus, a researcher at the Max Planck Institute for Evolutionary Anthropology, said: “These results provide a deeper understanding of the early pioneers who settled in Europe.”

“They also suggest that the remains of modern humans more than 50,000 years old found outside Africa have interbred with Neanderthals and are part of the general non-African population now found in many parts of the world. This indicates that it may not have been the case.”

of findings Published in today's magazine nature.

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AP Sumer others. The genomes of the earliest modern humans constrain the timing of admixture with Neanderthals. naturepublished online on December 12, 2024. doi: 10.1038/s41586-024-08420-x

This article is adapted from the original release by the Max Planck Institute for Evolutionary Anthropology.

Source: www.sci.news

Revising the Timeline of Interbreeding Between Neanderthals and Ancient Humans

overview

  • Many people carry small pieces of Neanderthal DNA, evidence of interbreeding between Neanderthals and ancient human ancestors.
  • Two new studies suggest that interbreeding occurred during the limited period when ancient humans left Africa.
  • Clarifying that timeline narrows the range of possible times for humans to spread to new continents.

The genetic code of many people hides mysteries that have long intrigued scientists. It’s a tiny piece of Neanderthal DNA that persists tens of thousands of years after the species disappears.

Most people outside Africa can attribute about 1% to 2% of their DNA to Neanderthal ancestry.

However, the details of its evolutionary history remain unclear. How often did ancient humans and Neanderthals interbreed? When exactly did it happen? Why did Neanderthals become extinct and why did modern humans survive? That Neanderthal DNA What is it bringing us now?

Two research groups independently analyzed collections of ancient genomes and reached the same conclusions about some of their core questions. published research Published in Nature magazine and thursday science Evidence suggests that ancient humans and Neanderthals interbred for a limited period of time as humans left Africa and migrated to new continents.

The results suggest that a wave of interbreeding occurred approximately 43,500 to 50,500 years ago. Then, over the next 100 generations, most, but not all, of the Neanderthal DNA was culled. The remaining DNA is now associated with traits such as skin pigmentation, immune response, and metabolism.

New findings suggest that this interbreeding event occurred more recently than previous estimates suggested, shifting and narrowing the window during which humans may have spread to places like modern-day China and Australia. That’s what it means.

The importance of fossilized human remains dating back more than 50,000 years, discovered in Europe and other parts of the world, has also been revealed. According to a new study, those populations became extinct and reached an evolutionary dead end.

“Human history is not just a success story. In fact, humans went extinct several times,” said Johannes Krause, author of the Nature paper and professor at Germany’s Max Planck Institute for Evolutionary Anthropology. “There are multiple lineages that we’re identifying now that didn’t affect later people.”

The discovery also shows how adept anthropologists are at reconstructing ancient DNA and analyzing it to infer the course of human history.

Priya Muajani, author of the Science paper and assistant professor of molecular and cellular biology at the University of California, said: “We can look at past events and actually reconstruct what the path we are on will be. It’s a great thing to be able to do.” Berkeley. “Although 50,000 years ago is a long time ago, having genetic data available from these samples really helps paint a more detailed picture.

The two research groups took different approaches to the study.

Moorjani’s group cataloged genomic information from 59 ancient and 275 modern humans who lived between 2,000 and 45,000 years ago. The researchers then analyzed how the distribution and length of Neanderthal DNA in those genomes changed over time.

They determined that the influx of Neanderthal genes into humans occurred about 47,000 years ago and lasted less than 7,000 years. These findings are consistent with archaeological evidence suggesting that Neanderthals and humans overlapped geographically when humans left Africa. Many scientists suspect that the two species crossed paths in the Middle East, but this has not been confirmed.

After interbreeding, natural selection retained some Neanderthal traits and discarded many more.

Source: www.nbcnews.com

Ancient Traces of American Beer Found in China Dating Back to 10,000 Years Ago

The Shengshan culture of the lower Yangtze region of ancient China plays a central role in understanding the origins of rice cultivation and early alcoholic fermentation. To address these questions, the researchers examined artifacts from the early stages of the Kaminoyama site, 10,000 to 9,000 years ago. By analyzing microscopic artifacts such as phytoliths, starch granules, and fungi associated with pottery vessels, the researchers found that people in the upper mountains consumed rice not only as a staple food but also as an ingredient for brewing fermented beverages. Evidence suggesting the use of alcohol fermentation technology in East Asia was also found.



Locations and relics of Shangshan culture sites: (A) Locations of Shangshan, Qiaotou, and Xiaohuangshan ruins (dots) and distribution area of ​​Shangshan culture (red circles). (B) Selected pottery shards analyzed: 1 – Cup shard. 2 – Bottle fragments. 3 – Bottle fragments. 4 – Fragment of the rim of a sandy pot. 5 – Large basin debris. 6 – Base of the ring foot bowl. (C) Corresponding complete containers: 1 – spherical jar; 2 – ring-foot bowl; 3 – cup; 4 – flat base jar. 5 – Large basin. Image credit: Liu others., doi: 10.1073/pnas.2412274121.

The origins of rice cultivation have been the subject of extensive archaeological research and debate in recent years.

Based on existing data, archaeologists generally agree that the early stages of rice domestication occurred in the lower and middle Yangtze River regions of China.

of mountain culture Zhejiang Province represents the region where rice cultivation began in the early stages.

Although the extent of rice domestication is still being investigated, recent studies suggest that this process began early.

In a new study, Professor Leping Jiang and colleagues at the Zhejiang Provincial Institute of Cultural Relics and Archeology address questions related to the material and social mechanisms that may have played an important role in the exploitation and alcohol brewing of early Shangshan rice. is.

The researchers analyzed microfossils associated with early-stage pottery at the Kaminoyama site.

“These fragments were associated with different types of containers, including those for fermentation, serving, storage, cooking, and processing,” Professor Jiang said.

“We carried out microfossil extraction and analysis of residues from the inner surfaces of the pottery, the clay of the pottery, and the sediments of the surrounding cultural layers.”

“We focused on identifying phytoliths, starch grains, and fungi, providing insight into the uses of the pottery and food processing methods employed in the field,” said Professor Li Liu of Stanford University. .

Analysis of phytoliths revealed a significant presence of phytoliths from rice grown in the residue and clay.

“This evidence shows that rice was the main plant resource for the Shangshan people,” said Professor Zhang Jianping, a researcher at the Institute of Geology and Geophysics, Chinese Academy of Sciences.

“There is also evidence that rice husks and leaves were used to make pottery, further proving the essential role of rice in the Joshan culture.”

The researchers found a variety of starch granules in the pottery residue, including rice, grasshopper tears, barnyard grass, Triticaceae, acorns, and lilies.

Many of the starch granules showed signs of enzymatic degradation and gelatinization, which are characteristic of fermentation processes.

Scientists also discovered an abundance of fungal elements, including: Monascus It contained mold and yeast cells, some of which showed developmental stages typical of fermentation.

These fungi are closely related to liquor starters used in traditional brewing methods, such as those used to make Hongjiujiu (Hongjiujiu) in China.

The team analyzed the following distributions: Monascus Yeast also persists in many types of ceramic containers, with higher concentrations observed in spherical jars compared to crock pots and processing tubs.

This distribution suggests that vessel type is closely associated with specific functions, and that the spherical jars were intentionally manufactured for alcoholic fermentation.

This discovery suggests that the Shangyama people employed a wide range of survival strategies during the early stages of rice cultivation, using ceramic vessels, especially spherical pots, to brew cue-based rice alcoholic beverages. Masu.

The emergence of this brewing technique in the early Uyama culture was closely related to the domestication of rice and the warm and humid climate of the early Holocene.

“Domestic rice provided a stable resource for fermentation, while favorable climatic conditions supported the development of qu-based fermentation technology that relies on the growth of filamentous fungi,” Professor Liu said.

To rule out potential contamination from soil, the authors analyzed sediment control samples and found that starch and fungal residues in these samples were significantly lower than pottery residues. It became.

This finding strengthens the conclusion that residues are directly related to fermentation activity.

Modern fermentation experiments using rice, MonascusThe yeast then further validated that finding by demonstrating a morphological match with fungal remains identified on Ueyama pottery.

“These alcoholic beverages likely played a pivotal role in ceremonial feasts, highlighting their ceremonial importance as a potential driver of the intensified use and widespread cultivation of rice in Neolithic China.” Professor Liu said.

“Evidence for alcoholic fermentation of rice at Shangshan indicates that this technology arose earliest in East Asia, and suggests that the complexity between rice cultivation, alcoholic beverage production, and social formation in early Holocene China It provides new insights into the interactions between

of findings will appear in Proceedings of the National Academy of Sciences.

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Li Liu others. 2024. Rice beer dating back 10,000 years has been found in the mountains above the lower reaches of the Yangtze River in China. PNAS 121 (51): e2412274121;doi: 10.1073/pnas.2412274121

Source: www.sci.news

Ancient Ichthyosaur Fossil, 98 Million Years Old, Unearthed in New Zealand

New Zealand paleontologists have discovered a partial skeleton. platypterygoid ichthyosaur It dates back to the Cretaceous period.

a pair of Platypterygius sp. Image credit: Dmitry Bogdanov / CC BY 3.0.

“Ichthyosaurs are a clade of secondary aquatic marine reptiles that lived in the oceans for much of the Mesozoic, first appearing in the Early Triassic and eventually becoming part of the Cenomanian.'' It became extinct at the Turonian border.”

“Cretaceous ichthyosaurs were once thought to be a group with low diversity and disparity, the result of a long-term decline since the Jurassic.”

“However, recent studies have produced a growing body of evidence that Cretaceous ichthyosaurs were much more diverse than previously thought.”

“Ichthyosaur fossils were first recorded in New Zealand by von Haast in 1861 from Pott Mountain in the central South Island,” they added.

“Over the next 150 years, ichthyosaur fossil material was recovered from the Triassic, Jurassic, and Cretaceous periods.”

The new New Zealand ichthyosaur was discovered in the Coverham area at the northern end of the Waiau Toa/Clarence Valley.

The specimen is a disarticulated partial skeleton preserved in a tubercle.

Its origins date back to 98 million years ago during the Cretaceous period, about 4 million years before ichthyosaurs finally became extinct.

“This material comes from the condensate that was discovered.” on site “It lies within the Swale Silt Formation of the Split Rock Formation, a siliciclastic unit deposited during the Cenomanian period and found throughout southern Marlborough and northernmost Canterbury on New Zealand's South Island,” the paleontologists said.

“All Cretaceous ichthyosaur material ever described in New Zealand comes from the North Island.”

This specimen is the most completely preserved ichthyosaur known from New Zealand.

It has a well-preserved pelvis and dorsal fin, adding to the known data set of these elements, which are poorly preserved in Cretaceous species.

“Although the specimen is too fragmentary to be formally named, this taxon has an extremely reduced basioccipital extracondylar area, a scapula with a prominent acromion process and a strap-like scapular shaft, and A complete left pelvic girdle with an elongated depression “located on the anteroproximal aspect of the ischium” is shown, the researchers said.

They suggest that it is a late-diverging member of the platypterygian ichthyosaurs and is closely related to East Gondwanan species. Platypterygius australis and many European Cretaceous ichthyosaurs.

However, it appears to be unrelated to the Cretaceous ichthyosaurs of western Gondwana, suggesting potential regionalism in the Cretaceous ichthyosaur populations of Gondwana.

“New Zealand ichthyosaurs add to the known diversity of Gondwanan-Cretaceous ichthyosaurs, and suggest that ichthyosaur populations were distributed regionally, rather than internationally, near the margins of Cretaceous Gondwana. “This may indicate that,” the scientists concluded.

of findings will appear in Journal of Vertebrate Paleontology.

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George R.A. Young others. A platyptera ichthyosaur from the Cenomanian region of central New Zealand. Journal of Vertebrate Paleontologypublished online October 30, 2024. doi: 10.1080/02724634.2024.2408391

Source: www.sci.news

Newly discovered species of ancient hominid: Homo juruensis

Homo juruensis Emerging human species, including the mysterious Denisovans and several hominid fossils from Tibet, Taiwan and Laos, lived in East Asia from about 300,000 to 50,000 years ago.

Portrait of a young Denisovan woman based on a skeletal profile reconstructed from ancient DNA methylation maps. Image credit: Maayan Harel.

“Our research uncovered a hominin fossil record that tended to include things that were not easily attributable. homo erectus, homo neanderthalensis or homo sapiens'' said the University of Hawai'i at Mānoa. Professor Christopher Bay and Dr. Wu Xiujie from the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences.

“We started this project several years ago, but we never expected that we would be able to propose a new hominin species, and even classify Asian hominid fossils into different groups. In general, this should be useful for scientific communication.”

“This research is important because it will help scientists better understand the complex story of human evolution in Asia and fill gaps in our understanding of our ancient relatives.”

reconstruction of homo floresiensis. Image credit: Elizabeth Danes.

The authors suggest that there are at least four human species. homo floresiensis, Homo luzonensis, Homolonghiand the newly established Homo juruensis — Existed in East Asia during the late Quaternary period.

Homo juruensis They lived in East Asia about 300,000 years ago, hunted wild horses in small groups, made stone tools and probably processed animal skins to survive, and disappeared about 50,000 years ago. Ta.

“The field of late Quaternary East Asian paleoanthropology is in the midst of significant and important changes, largely due to the growth of the hominin fossil record, as we look to change these evolutionary models. “This is a major contribution to how we understand and refine this approach,” the researchers said.

“This field in particular was shocked 20 years ago with the publication of this little book. homo floresiensis Fossils discovered on Flores Island, Indonesia in 2004. ”

“Just recently, another small species… Homo luzonensisAn individual living on the island of Luzon in the Philippines has been added as a new hominin. ”

“In China, Homo longhi It was published after the analysis of Harbin fossils. ”

“Fossils like Dali and Jinyushan may be tentatively included.” Homolonghi Similarly, we await further comparative analysis. ”

“More recently, after detailed studies of the Xujiayao and Xuchang fossils, we have added: Homo juruensis to these discussions. ”

Reconstruction of Homolonghi In his habitat. Image credit: Chuang Zhao.

Importantly, along with the Xiahe people, scientists have also assigned the mysterious Denisovans. Penghu CountyTam Ngu Hao 2 fossil, Homo juruensis.

Although further research is clearly needed to verify this relationship, it is primarily based on similarities between jaw and tooth fossils from these different locations.

“The East Asian hominin fossil record is a good example of how unilinear evolutionary models, such as traditional multiregionalism, cannot adequately account for the complexity of the paleoanthropological record, especially in the late Quaternary.” the authors concluded.

“Rather, the East Asian record prompts us to recognize how complex human evolution is more generally, and to revise the interpretations of various evolutionary models to better match the growing fossil record.” , it’s really forcing us to reconsider.”

Their paper Published in a magazine nature communications.

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CJ Bae & X. Wu. 2024. Understanding late Quaternary hominin diversity in East Asia. Nat Commune 15, 9479;doi: 10.1038/s41467-024-53918-7

Source: www.sci.news