Study Reveals Domestic Cats Were Introduced to Europe Around 2000 Years Ago, Likely from North Africa

Domestic cats (Felis catus) and African wildcats (Felis silvestris lybica) have successfully adapted to human environments worldwide. The precise origin of the domestic cat—whether it emerged in the Levant, Egypt, or another part of the African wildcat’s range—remains uncertain. A research team from the University of Rome Tor Vergata, led by Tor Vergata, has sequenced the genomes of 87 ancient and modern cats. Their research challenges the traditional belief that domestic cats were brought to Europe during the Neolithic period, suggesting instead that their arrival occurred several thousand years later.

Ancient cat genomes from European and Anatolian sites indicate that domestic cats were introduced to Europe from North Africa around 2,000 years ago, many years after the Neolithic period began in Europe. The Sardinian African wildcat has a separate lineage originating from northwest Africa. Image credit: De Martino et al., doi: 10.1126/science.adt2642.

The history of domestic cats is extensive and complex, yet it contains many uncertainties.

Genetic analyses reveal that all modern domestic cats can trace their ancestry back to the African wildcat inhabiting North Africa and the Near East.

Yet, limited archaeological evidence and the challenges of differentiating between wild and domestic cats through skeletal remains pose significant obstacles in comprehending the origins and diffusion of early domestic cats.

“The timing and specifics surrounding cat domestication and dispersal are still unclear due to the small sample size of ancient and modern genomes studied,” stated Dr. Marco De Martino from the University of Rome Tor Vergata and fellow researchers.

“There are ongoing questions regarding the historical natural habitats of African and European wildcats and the possibility of their interbreeding.”

“Recent investigations have shown that ancient gene flow can complicate the understanding of cat dispersal, especially when relying on mtDNA data.”

“The origins of African wildcat populations on Mediterranean islands like Sardinia and Corsica are equally obscure.”

“Current research suggests these populations constitute a distinct lineage rather than stemming from domestic cats.”

To explore these issues, the team examined the genomes of 70 ancient cats retrieved from archaeological sites in Europe and Anatolia, in addition to 17 modern wildcat species from Italy (including Sardinia), Bulgaria, and North Africa (Morocco and Tunisia).

In contrast to earlier studies, they concluded that domestic cats most likely emerged from North African wildcats rather than the Levant, and that true domestic cats appeared in Europe and southwest Asia several thousand years post-Neolithic.

The early cats of Europe and Turkey predominantly consisted of European wildcats, indicating ancient interbreeding instead of early domestication.

Once introduced, North African domestic cats proliferated across Europe, following routes used by Roman military forces, and reached Britain by the first century AD.

This study also reveals that the Sardinian wildcat is more closely related to North African wildcats than to either ancient or modern domestic cats, suggesting that humans transported wildcats to islands where they do not naturally exist, and that the Sardinian wildcat did not descend from early domestic cat populations.

“By identifying at least two distinct waves of introduction to Europe, we redefine the timeline of cat dispersal,” the researchers noted.

“The first wave likely introduced wildcats from northwest Africa to Sardinia, forming the island’s current wildcat population.”

“A separate, as yet unidentified population in North Africa triggered a second dispersal no later than 2,000 years ago, establishing the modern domestic cat gene pool in Europe.”

The team’s findings are highlighted in this week’s edition of Science.

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M. De Martino et al. 2025. Approximately 2,000 years ago, domestic cats migrated from North Africa to Europe. Science 390 (6776); doi: 10.1126/science.adt2642

Source: www.sci.news

5,000 Years Ago: Ancient Humans Introduced Wolves to Isolated Baltic Sea Islands.

The wolf, the wild ancestor of dogs, stands as the sole large carnivore domesticated by humans. Nonetheless, the exact nature of this domestication remains a topic of debate—whether it was a result of direct human control over wild wolves or a gradual adaptation of wolf populations to human environments. Recent archaeological findings in the Stra Fjärväl cave on the Swedish island of Stra Karsø, located in the Baltic Sea, have revealed the remains of two canids with genetic ties to gray wolves. This island, measuring just 2.5 km2, possesses no native land mammals, similar to its neighboring Gotland, and thus any mammalian presence must have been human-introduced.

Canadian Eskimo Dog by John James Audubon and John Bachman.

“The discovery of wolves on such a remote island was entirely unexpected,” remarked Dr. Linus Gardland Frink, a researcher from the University of Aberdeen.

“They not only had genetic links indistinguishable from other Eurasian wolves but also seemed to coexist and feed alongside humans in areas that were only reachable by boat.”

“This paints a complex picture of the historical dynamics between humans and wolves.”

Genomic analysis of the canid remains indicates they are wolves, not dogs.

However, their traits suggest a level of coexistence with humans.

Isotope analysis of their bones indicates a diet high in marine proteins, such as seals and fish, mirroring the diet of the humans on the island, suggesting they were likely fed.

Furthermore, these wolves were smaller than typical mainland counterparts, and one individual demonstrated signs of low genetic diversity—a common outcome due to isolation or controlled breeding.

This findings challenge long-standing notions regarding the power dynamics between wolves and humans and the domestication of dogs.

While it is unclear if these wolves were domesticated, confined, or managed, their presence in human-occupied areas suggests deliberate and ongoing interactions.

“The fact that it was a wolf and not a dog was a complete surprise,” stated Dr. Pontus Skoglund from the Francis Crick Institute.

“This provocative case suggests that under certain conditions, humans may have kept wolves in their habitats and found them valuable.”

“The genetic findings are intriguing,” noted Dr. Anders Bergström from the University of East Anglia.

“We discovered that the wolf with the most complete genome showed less genetic diversity than any ancient wolf previously analyzed.”

“This resembles what is observed in isolated or bottlenecked populations, or in domesticated species.”

“Although we cannot completely dismiss the idea that low genetic diversity may occur naturally, it implies humans were likely interacting with and managing wolves in ways not previously considered.”

One Bronze Age wolf specimen also presented advanced pathology in its limb bones, which would have restricted its mobility.

This suggests care or adaptation to an environment where large prey hunting was unnecessary for survival.

Professor Jan Stroh of Stockholm University stated: “The combined data offers new and unexpected perspectives on human-animal interactions during the Stone and Bronze Ages, especially regarding wolves and dogs.”

“These findings imply that prehistoric interactions between humans and wolves were more intricate than previously understood, involving complex relationships that extend beyond simple hunting or avoidance, hinting at new aspects of domestication unrelated to modern dogs.”

A study detailing this research was published on November 24th in the Proceedings of the National Academy of Sciences.

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Linus Gardland-Frink et al. 2025. A gray wolf in the anthropogenic setting of a small prehistoric Scandinavian island. PNAS 122 (48): e2421759122; doi: 10.1073/pnas.2421759122

Source: www.sci.news

Stablecoin introduced by Trump’s Crypto Venture

World Liberty Financial, a cryptocurrency company launched by Donald J. Trump and his sons, announced Tuesday that it plans to deepen the president’s financial ties with crypto as his administration eases industry enforcement.

Stablecoin is known as the company USD1 I wrote it Social media posts do not reveal when it will be sold. A common form of cryptocurrency, Stablecoins is designed to maintain a constant value of $1, and is useful for many types of crypto transactions.

“There are no games, there are no gimmicks, there are just real stability,” says World Liberty Financial Posted With an X account.

Stablecoin is the fourth digital currency sold to the public last year by Trump and his business partners. World Liberty already offers a cryptocurrency called WLFI. This month, the world’s freedom announcement Of these digital coins, they sold $550 million. Business entities associated with Trump have received a 75% reduction in sales.

A few days before taking office, Trump began selling so-called memo coins. This is a kind of digital currency based on online jokes and celebrity mascots. Melania Trump put his memo coins to the market the same weekend.

Trump has aggressively entered the crypto market as his administration eases enforcement and rolls back regulations. According to government ethics experts, his efforts to benefit from industry oversee the vast amount of conflicts of interest that is virtually unprecedented in American history.

World Liberty’s Stablecoin adds to the nasty knot of business conflict. Congress is considering legislation that regulates the ridiculous idiots that could reach Trump’s desk by the end of the year. Trump gave a speech at this month’s crypto conference. Called Regarding Stablecoins’ “simple common sense rules,” he says, “we will expand control of the US dollar.”

Stubcoins are usually supported by assets stored by the coin issuer. Every time a user redeems a Stablecoin, they can go to the issuer and exchange digital coins for cash equivalents.

In an announcement Tuesday, World Liberty said it will use short-term US Treasury, dollar deposits and other cash equivalents to back up stubcoins.

“We provide digital dollar stability that allows sovereign investors and key institutions to confidently integrate into a seamless, secure cross-border trading strategy,” said Zach Whitkoff, one of the founders of World Liberty and the son of Steve Wickoff, Trump’s Envoy to the Middle East.

Trump, a former crypto skeptic, last year embraced digital currency on the campaign trail and committed to transforming the United States into the “crypto capital of the planet.” The industry has spent tens of millions of dollars funding Congressional candidates who supported Trump and spoke favorably about the code.

In September, Trump began World Freedom with his sons, starting Steve and Zach Witkoff. They entrusted two little-known entrepreneurs with virtually no track record in the industry, Chase Hero and Zach Falkman, to run the business day by day.

World Liberty initially promised to create a cryptographic platform that allows users to borrow and lend digital currency. However, so far, the company has not launched any products other than WLFI and Stablecoin.

The company has set out on something like a purchase, bringing together a stockpile of etheric cryptocurrency and lesser-known coins like SUI and Link.

In a recent panel, Hero I said That world’s freedom was creating a “strategic reserve” of tokens. He did not explain the ultimate purpose of stockpiling.

The idea had a clear echo of the creation of a US stockpile of Bitcoin, one of Trump’s initiatives at the White House.

Source: www.nytimes.com

New Shocking Training Method Introduced by Johns Hopkins

A study by Johns Hopkins University has demonstrated that applying a gentle electric current to the cerebellum increases an individual’s ability to transfer skills from virtual reality to real-world environments, particularly in robotic surgery. The technology showed significant improvements in dexterity and skill application in participants, even without prior surgical or robotics training, and was used in training in a variety of high-tech industries, including medical and robotics. It could revolutionize the way we do things. Credit: SciTechDaily.com

Researchers at Johns Hopkins University have found that gentle electrical stimulation of the cerebellum significantly improves the transition from virtual reality training to real-world tasks in robotic surgery, and in medical and technical training. It shows potential advances in the method.

People who received a mild electrical current to the back of the head learned to operate a robotic surgical tool in virtual reality and subsequently operated the robotic surgical tool in a real environment much more easily than those who did not receive such stimulation. A new study shows that.

The study results provide the first glimpse of how stimulating a specific part of the brain, called the cerebellum, could help medical professionals apply what they learn in virtual reality to the real operating room. It’s a much-needed transition in a field that is increasingly reliant on digital simulation training. “It’s important to remember that this is the case,” said author Jeremy D. Brown, a robotics engineer at Johns Hopkins University.

“Training in virtual reality is not the same as training in a real environment. Previous research has shown that skills learned in simulation can be difficult to transfer to the real world.” , said Mr. Brown of John C. Kennedy. Malone Associate Professor of Mechanical Engineering. “Although it is very difficult to claim statistical accuracy, the participants in the study concluded that when they received this stimulation, they were able to more easily transfer skills from virtual reality to the real world. ”

This work was published today (December 20th). Nature scientific report.

Participants drove surgical needles through three small holes, first in a virtual simulation and then in a real-life scenario using the da Vinci Research Kit, an open-source research robot. Researchers say the exercise mimics the movements required during surgery on abdominal organs.

Participants received a subtle flow of electricity through electrodes or small pads placed on their scalp to stimulate the cerebellum of the brain. Half of the group received a steady flow of electricity throughout the test, while the remaining participants received only a short stimulation at the beginning and nothing at all for the rest of the test.

Those who received steady flow showed significant improvements in dexterity. None of them had prior training in surgery or robotics.

“The unstimulated group had a little more trouble applying the skills they learned in virtual reality to the real robot, especially the most complex movements that involve rapid movements,” said Johns Hopkins University roboticist and former robotics engineer. , said Guido Caccianiga, now of Max. Planck Institute for Intelligent Systems, which designed and led the experiment; “The group that received brain stimulation did better at those tasks.”

Non-invasive brain stimulation is a method of influencing specific parts of the brain from outside the body, and scientists say they have shown how it can aid motor learning in rehabilitation therapy. Ta. Co-author Gabriela Cantarello, a former assistant professor of physical therapy and rehabilitation, said the research team is looking at how surgeons can stimulate their brains to acquire skills they might need in real-world situations. He said he was taking research to a new level by testing whether it could help. at Johns Hopkins University.

“It’s really great to be able to use this setup to actually influence behavior and really quantify every little aspect of people’s movements, deviations, and errors,” Cantarello said.

Study participants undergoing non-invasive brain stimulation sit at the console of a surgical robot and use a virtual reality simulation of needle-stroke practice. Credit: Guido Caccianiga/Johns Hopkins University.

Robotic surgical systems offer significant benefits to clinicians by improving human skills. It helps surgeons minimize hand tremors and enhance vision for detailed and precise work.

In addition to impacting the way future surgeons learn new skills, this type of brain stimulation also holds promise for skill acquisition in other industries that rely on virtual reality training, particularly in the field of robotics.

Even outside of virtual reality, this stimulation is likely to help people learn more generally, the researchers said.

“What if we could prove that if you stimulate your brain, you can learn new skills in half the time?” Caccianiga said. “This will significantly reduce costs because we can train people more quickly. We will have more resources to train more surgeons and engineers who will be working frequently with these technologies in the future. You can save.”

Reference: “Anodal cerebellar t-DCS influences skill learning and transfer in robotic surgical training tasks” by Guido Caccianiga, Ronan A. Mooney, Pablo A. Celnik, Gabriela L. Cantarero, and Jeremy D. Brown, 2023 December 20th, scientific report.
DOI: 10.1038/s41598-023-47404-1

Other authors include Ronan A. Mooney of the Johns Hopkins University School of Medicine and Pablo A. Selnik of the Shirley Ryan Ability Lab.

Source: scitechdaily.com

New AI-powered search updates, enhanced navigation interface, and more introduced by Google Maps

Google is adding a number of new updates to Maps. These include several AI-powered features designed to make it easier for users to search, explore their surroundings, and reach their destinations. The company is rolling out updates to its navigation interface that will make it easier to find specific items nearby or find inspiration for things to do, provide EV drivers with more information about chargers, and expand the features announced in 2018 to more cities and more.

The tech giant is updating its in-map search to make it easier to find specific things nearby. Searching for things like “animal latte art” will show you the photo results you’re looking for. The results you see are based on AI and advanced image recognition models analyzing the photos you share on Google Maps. By showing you these images, Google wants to make it easier for you to find new spots that have exactly what you’re looking for. In this scenario, if you find a cute animal latte art image that you like, you can click on it to see details of the coffee shop that offers that image and be directed to that cafe.

Image credits: Google

This new way to search in Maps is rolling out this week in France, Germany, Japan, the UK, and the US. Google plans to expand its service to more countries in the future.

If you have free time and aren’t sure what you’re looking for, you’ll soon see more organized search results for things near you. For example, if you’re in Tokyo and don’t know what to do, search for “things to do” and you’ll get suggestions for places like “anime,” “cherry blossoms,” and “art exhibitions.” You can tap a location to go to it or save it for later. The update is designed to help you discover activities and dining options and will roll out globally on Android and iOS in the coming weeks.

Image credits: Google

Google also announced that its Maps navigation interface will soon reflect your surroundings more accurately. For example, when you’re driving downtown, you’ll see more realistic buildings and better orient yourself. In addition to color updates on the map, you now see improved lane details when driving on highways. This is useful when you need to quickly cross multiple lanes to get to the exit. These updates will begin rolling out in the coming months in 12 countries, including the United States, Canada, France, and Germany.

US drivers will start checking to see if there are HOV lanes on their routes. And in Europe, he’s expanding Google’s AI-powered speed limit information to 20 countries. Both of these features will begin rolling out to Android, iOS, and cars with Google built-ins in the coming months.

Image credits: Google

In addition, EV drivers using Android and iOS can see on the map whether a charger is compatible with their vehicle and whether available chargers are fast, medium, or slow. You will now be able to see additional information about charging stations. You can also see when the charger was last used, so you can be sure it’s working properly and avoid using a broken charger.

As part of today’s announcement, Google shared that it will be expanding some of its current AI-powered features to more cities. Immersive View for Routes, which lets you preview your journey by car or on foot, is expanding to Amsterdam, Barcelona, ​​Dublin, Florence, Las Vegas, London, Los Angeles, Miami, New York, Paris, San Francisco, San Jose, Seattle, Tokyo, and Venice (on Android and iOS).

Google is also bringing Lens in Maps, formerly known as Search with Live View, to more than 50 new cities, including Austin, Las Vegas, Rome, Sao Paulo, and Taipei. This feature uses AI and augmented reality to help you understand your surroundings, and when you lift your phone, you can find information about nearby ATMs, transit stations, restaurants, etc.

Source: techcrunch.com