research – Page 3 – Pain In The Bud

With Bird Flu Spreading, It’s Probably A Good Idea To Keep Your Cats Inside

So far there are no cases of cats infecting humans, but a new study published Tuesday warns the virus easily mutates in infected felines.

Health officials have identified at least five cases of domestic cats infected with H5 bird flu in California, and they’re warning of multiple vectors of transmission now that both outdoor and indoor cats have been infected.

Two cats were infected after drinking raw milk from a dairy farm in Fresno, California, according to the Los Angeles Department of Public Health. That’s also how a dozen barn cats died in April after drinking raw milk from infected cows on a Texas dairy farm, the CDC said.

But three other cats who tested positive for bird flu were indoor-only, lived in the same home, and did not consume raw milk, authorities said. They’re looking into the possibility that the felines were infected through raw meat or by hunting mice.

So now it’s not only confirmed that cats are vulnerable to highly pathogenic avian influenza, or HPAI H5N1, but that they can be infected in different ways.

To be clear, it’s not a cause for panic and it doesn’t mean people should isolate from their cats, but it does mean we should be smart and considerate when it comes to protecting our pets and reducing the possibility that they can be infected.

Because millions of felines live with humans, the fear is that they can pass the virus onto us. So far there have been no confirmed cases, but a study published on Tuesday confirmed that the virus can easily mutate in cats. That means the more domestic cats are infected, the greater chance the virus mutates in a way that allows it to “bridge” to humans.

At least two people — one in Wisconsin and one in Louisiana — have tested positive for the virus and were hospitalized this week. One worked on a farm and the other may have consumed raw milk. In the meantime, health officials are monitoring the people whose three cats were infected, and they’re urging people to take precautions.

“To avoid the spread of disease, including H5 bird flu, we strongly encourage residents and their pets to avoid raw dairy and undercooked meat products, limit contact with sick or dead animals, report sick or dead birds, and keep pets or poultry away from wild animals and birds,” said Dr. Barbara Ferrer, director of the Los Angeles County Department of Public Health.

Paleontologists Recover Shockingly Intact Saber-Toothed Kitten Buried For 35,000 Years

The find is extraordinary, allowing scientists to directly study the extinct cat’s musculature, fur, head shape, and even its claws and whiskers.

A team in Russia stumbled on the find of the century when they located the stunningly well-preserved remains of a saber-toothed kitten in Siberia.

The kitten, which was found near the Badyarikha River in northeastern Siberia, was about three weeks old when it died, scientists estimate.

Unlike typical finds — a fang here, a mandible or partial skeleton there — this specimen still had its fur, claws, whiskers and muscles, which means scientists have already learned more about the species, Homotherium latidens, than they have with almost any other long-extinct animal.

homotheriumpawpads — Images of the extinct cub’s paws compared to (D), the paw of a 3-week-old lion cub pictured on the bottom right. The Homotherium paw is thicker but less elongated. Credit: Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russia

While the saber-toothed cub is a true felid, it boasts adaptations unlike any surviving member of the panthera genus.

It has wide paws wrapped in heavy fur, a short tail and a stockier, lower-to-the-ground build than modern lions and tigers. Those adaptations, scientists believe, made it easier for Homotherium latidens to traverse environments with ice and heavy snow.

Its head shape is slightly different, with smaller ears than modern big cats, and its neck is enormous, more than twice as thick as the neck of a comparable three-week-old lion cub which was used for comparison. Likewise, its mouth is capable of opening significantly wider, although the team did not compare it to the jaguar, which has the widest-opening jaw among extant felids.

Homotherium cub — A photograph of the cub, top, and a scan revealing facial, ear and neck structure, below. Credit: Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russia

The frigid, arid clime of Siberia made it possible for the cub’s body to endure for so long. The team that made the discovery conducted radiocarbon dating that puts the cat at between 35,000 and 37,000 years old, according to reports.

It’s not clear how the cub died, although its species went extinct about 10,000 years ago, likely as a direct result of fewer prey animals in the frigid zones it occupied. Additional bones belonging to the rear of the cub skeleton were encased in a large cube of ice immediately next to the intact upper body.

The cub’s remains were recovered in 2020, but the results of the research team’s analysis were just released on Nov. 14 and published in the journal Nature. The paper’s authors have a lot more to share about the species’ physical characteristics, they noted in the text, and plan to follow up soon with a second paper going into more detail about what they learned from the cat’s intact musculature.

Top image: An artist’s impression of an adult member of homotherium.

Cat Brains Age Like Ours, Research Shows

Lifelong changes in the brains of felines more closely resemble aging in human brains. Studying cognition and cognitive decline in cats could help us better understand brain aging in general, scientists say.

For almost the entire history of modern science, rodents have served as a stand-in for humans in research into everything from metabolism to autoimmune responses.

They’ve even been the go-to for studies examining cognitive decline, diseases and neural mechanisms.

But now research shows there’s a better model closer to home. It turns out cat brains more closely resemble human brains in many respects, particularly in terms of aging and its effect on our mental faculties.

From Nature:

“As cats age, their brains show signs of atrophy and cognitive decline that more closely resemble the deterioration seen in ageing humans than do the changes in the brains of ageing mice, according to findings presented last month at the Lake Conference on Comparative and Evolutionary Neurobiology near Seattle, Washington.

The results are part of a large project, called Translating Time, that compares brain development across more than 150 mammal species, and is now expanding to include data on ageing. The hope is that the data will aid researchers trying to crack the causes of age-related diseases, particularly conditions that affect the brain, such as Alzheimer’s disease.”

One drawback to using mice is they simply don’t live long enough for their brains to deteriorate in ways many human and non-human animals do, scientists told Nature. They also have species-specific mechanisms that ward off certain degenerative diseases, including Alzheimer’s.

Not only do cats live longer, but their brain development and decline mirrors our own on a shorter time scale, scientists say. Tracking brain changes in cats is also more helpful than doing the same with dogs, who have been radically changed by breeding. Felines are mostly left to mate as they please, meaning they’re closer to their natural form, allowing for more useful data.

a cute cat lying on the couch — Credit: Pranjall Kuma/Pexels

Looking to our furry friends makes sense anecdotally as well. Every cat lover has seen the unfortunate confusion and forgetfulness that can afflict senior cats. Older cats tend to sleep a lot more, which is significant for a species notorious for its extravagant snoozing habits.

Thankfully, efforts like the Catage Project do not result in more cats being used in laboratory experiments. Researchers draw their data from veterinary records, brain scans and blood samples.

When asked about how his species could help humans better understand things like cognitive diseases and decline because of their similarity to humans, Buddy the Cat declared the research “fake news.”

“Where’s my bumblebee toy?” Buddy asked. “Did you hide my bumblebee toy? I’ve been looking everywhere for it!”

When told the toy was right were it’s supposed to be, in his toy basket, the 10-year-old tabby grew irritated.

“Fake news!” he meowed. “You put it back there just to mess with me. I’m onto your games! Now where did I put my favorite milk bottle cap?”

Elephants Call Each Other By Name, Study Says

Elephants encode names and other information in low-frequency rumbles that can be heard miles away. For social animals who live in large herds, it’s crucial to be able to address individuals.

Elephants are famously social animals, moving in matriarchal herds that can consist of as many as 70 of their kind.

They also communicate over long distances, emitting rumbles that can be heard miles away.

Because of their social and nomadic existence, it makes sense that elephants would need a way to single out individuals and address each other, and for the first time researchers say they’ve found evidence of Earth’s largest land animals calling each other by name.

“If you’re looking after a large family, you’ve got to be able to say, ‘Hey, Virginia, get over here!’” Duke University ecologist Stuart Pimm told the Associated Press.

The research involved field work and analysis using artificial intelligence. To record samples of elephants communicating, teams followed herds with recording equipment. Notably, elephant rumbles include sounds in frequencies lower than the human ear can detect.

large elephants near lake — Credit: Pixabay/Pexels

The team paid close attention when one elephant vocalized and another responded, and recorded who initiated each rumble and who it was meant for.

Although elephants are best known for making loud “trumpeting” sounds, experts say those are more like exclamations while rumbles contain encoded information that African savanna elephants would need to communicate to each other.

“The rumbles themselves are highly structurally variable,” said Mickey Pardo, a biologist from Cornell University and co-author of the study. “There’s quite a lot of variation in their acoustic structure.”

A machine learning algorithm was then used to sort and categorize the large number of audio samples, looking for patterns that are difficult for human minds to detect.

“Elephants are incredibly social, always talking and touching each other — this naming is probably one of the things that underpins their ability to communicate to individuals,” said George Wittemyer, an ecologist at Colorado State University and co-author of the study. “We just cracked open the door a bit to the elephant mind.”

A female elephant with her young offspring in Kenya. Credit: Pixabay/Pexels

Notably, the elephant “names” are identifiers that they created for themselves, and are not the kind of human-bestowed names that cats and dogs respond to. The list of animals who have names for themselves is short, although likely to expand with further study. Dolphins, for instance, identify themselves with unique whistling patterns, and parrots have a similar method, but both species address individuals by imitating their calls. Elephants use their name analogs the way humans do, to directly address each other.

The research has the potential to raise public awareness of elephant intelligence and their plight as they face threats to their continued existence. Like almost all of the Earth’s iconic megafauna, elephants will become extinct if we don’t do a better job protecting them and ending the ivory trade. Every year about 20,000 elephants are slaughtered for their tusks to feed the demand for ivory, especially in China where it’s considered a status symbol, according to the World Wildlife Fund.

Yang Feng Glan, known as the”Queen of Ivory,” was sentenced to 15 years in prison by a Tanzanian court in 2019. Yang smuggled some 860 elephant tusks worth $6.5 million from Tanzania to China as the leader of one of the world’s most extensive poaching and ivory smuggling organizations.

During her years operating the smuggling ring, Yang presented herself as a successful businesswoman and ran in elite circles within China, authorities said. Two of her accomplices were also given 15-year sentences for their roles, but since then others have filled the vacuum left by Fang’s conviction, and elephant preserves are constantly under threat from heavily armed poachers.

Foundation Offers $10m For ‘Cracking The Code’ Of Animal Language

Think you can decipher the rhythmic clicks and whistles of dolphins or the grunts and alarm calls of monkeys? A foundation is offering big prizes for progress in communicating with animals.

Looking to prompt renewed efforts at decoding animal communication, a non-profit founded by an investor and a university are offering prizes — including a hefty $10 million — to teams that can figure out what animals are “saying.”

The Coller Dolittle Challenge for Interspecies Two-Way Communication is a collaboration between the Jeremy Coller Foundation and Tel Aviv University. (Yes, it’s named after that Dr. Dolittle.)

Entrants aren’t asked to come up with a Star Trek-like “universal translator” for animals. Rather, the people behind the Coller Dolittle Challenge want to see methods that allow for two-way communication between humans and individual species.

“We are open to any organism and any modality from acoustic communication in whales to chemical communication in worms,” said Yossi Yovel, a professor at Tel Aviv University and co-chairman of the challenge.

The grand prize is a $10 million grant or $500,000 in cash, chosen by the winner, while the Foundation will offer $100,000 prizes each year for the best entries that make significant progress toward communicating with animals. The yearly prizes will be assessed “for significant contributions to decipher, interface or mimic non-human organism communication.”

While it may seem far-fetched — and there are those who believe humans will never be able to fully understand animal communication in proper context — there have been efforts to communicate with and decode the communications of bats, dolphins, whales and some primate species. Scientists have also pushed the boundaries on understanding group communication, such as the coordination involved in avian murmurations.

orangutan on tree — Orangutans have demonstrated the ability to understand abstract concepts, like using money, rudimentary sign language, and have even deceived humans. One orangutan in the 1960s repeatedly escaped his zoo enclosure by hiding a small strip of metal in his mouth and using it to pick a lock. Credit: Klub Boks/Pexels

The organizers believe artificial intelligence will be the tool that ultimately helps crack the communication barrier, but entrants aren’t required to use AI. The technology is incredibly useful for tasks involving pattern recognition and sorting large amounts of data, both of which are important in this kind of work when researchers are tasked with analyzing thousands of audio samples or hundreds of hours of footage.

Alas, we don’t think the foundation will be interested in the Buddinese language, which boasts 327 different ways of demanding food and features a timekeeping and calendar system based on meals and naps. A short trill followed by a series of staccato meows, for example, means “I expect prompt service at salmon o’clock,” while a truncated meow ending with a scoff is used to indicate displeasure when a human napping substrate tosses too much during sleep.

Still, maybe we’ll dress it up to make it look properly academic and give the challenge a try. Those prizes could buy a lot of Roombas!