Two Thirds Of Cats Sleep On Their Left Side: Why?, PLUS: Aubrey Plaza’s Cat Comedy Premieres In April

Cats spend most of their time sleeping, which leaves them in a vulnerable position.

Aubrey Plaza is delightfully weird.

Anyone who’s seen her on a late night talk show or in an impromptu interview knows what I’m talking about. Instead of the practiced, carefully crafted anecdotes celebrities tell to make themselves seem more interesting, or the hard focus on promoting a particular project, Plaza seems to revel in awkward pauses, bizarre responses and stories that most people would never tell about themselves.

She does it all with a deadpan expression so you can never quite tell if she’s joking. That’s part of the fun.

I hadn’t seen her in much until Emily the Criminal, about a woman whose frustration at trying to make ends meet with dead-end jobs leads her down a highly illegal path, revealing a talent for deception she never knew she had.

Plaza in Emily the Criminal.

Now she’s starring in Kevin, an animated show about an eponymous tuxedo cat who decides that when his humans break up, he’s going to break up with them too. Instead of going with one of them, Kevin decides to move “into a local pet rescue in Astoria, Queens, where a band of misfit animals helps him discover what he truly wants out of life,” according to the series’ logline.

Plaza co-created the series with Joe Wengert, and Jason Schwartzmann, who we loved in Bored To Death, will voice Kevin. The show will premiere on April 20 on Prime Video.

A still from Kevin.

Cats prefer sleeping on their left side, but why?

Two out of three cats prefer sleeping on their left side, which immediately raises two questions: why do they prefer sleeping that way, and how do we know such a seemingly obscure piece of information?

In 2025, a team of scientists from Italy and Germany analyzed more than 400 random online videos of our furry overlords in their rest state, and the numbers were consistent. Cats definitely have a preferred side to sleep on, and it’s the left.

As for why, in a research paper published in Current Biology last summer, the scientists say there are several reasons, but the primary one is that the right side of the brain processes shapes and visual sensory input.

Since the right hemisphere of the brain controls the left side of the body in mammals, due to the way nerve fibers cross at the base of the brain, a cat opening its eyes and seeing the world from the left side is able to more quickly assess information and react.

Credit: Min An/Pexels

That’s a pretty big deal for cats, as a story in Science Focus notes. As both predator and prey, felines have to respond quickly not only to potential threats, but also potential lunch.

That is especially true for a species that spends the majority of its time sleeping deeply or napping, meaning they’re physically vulnerable to attack most of the time. That explains why our cats are able to spring to alertness immediately from a nap, and why their most restful sleep comes when they’re absolutely sure they’re safe.

Anecdotally, that makes sense. Bud clearly feels safest when he sleeps on me or burrows between my knees, and it’s subsequently harder to rouse him from slumber compared to, say, when he catches some Zs on the couch by himself or retreats to another favorite napping spot.

Perhaps unsurprisingly, he also bucks the trend and likes to sleep on his right side. We are, after all, talking about a cat who still hasn’t figured out that wand toy games simulate hunting, and that they should end with a “kill bite” rather than Bud’s favored method, which is bouncing happily on his back paws while bobbling the toy in his front paws.

He may have the instincts of his wild ancestors, but all he knows is the comfort and warmth of human homes.

Amazing Cats: Dwelling In Dense Jungles, Margays Are Tricksters and Champion Climbers

Strongly resembling ocelot cubs, margays have a unique biological adaptation to tree-climbing and a devious ability that gives them a massive advantage over their prey.

Taxonomic name: Leopardus wiedii
Genus: Felis (small cats)
Weight: Between 5 to 9 pounds with typical felid sexual dimorphism
Lifespan: More than 20 years in captivity
Gestation: About 80 days
Litter size: Single kitten, rarely more than one
Distribution: Central America, including Brazil, Paraguay, Peru, Chile, Ecuador, Venezuela, Guyana, Colombia, Panama and parts of Mexico
IUCN Red List Status: Near threatened

If you’re fortunate enough to catch a glimpse of a margay, you might think you’re looking at an ocelot cub.

The two species look remarkably similar, sharing beautiful rosette patterns in their fur, intense eyes and prominent facial stripes.

But ocelots are medium-size cats that can top out at 35 or 40 pounds, while margays are even smaller than domestic felines, weighing between five to nine pounds.

An ocelot cub with, left, with its mother. Margays are easily mistaken for ocelot kittens. Credit: Mark Dumont via Wikimedia Commons

Living in jungles teeming with life, margays have a distinct advantage that allows them to escape land-based predators while making them a threat to monkeys and other critters living in the branches — they are outstanding climbers with unique biological adaptations that allow them to do things other cats cannot.

Credit: Supreet Sahoo via Wikimedia Commons

The most dramatic example is their ankle joints, which allow them to rotate 180 degrees as the little spotted cats anchor themselves to trunks and branches. As a result, margays don’t just climb with speed and ease, they are capable of swiftly evacuating trees by climbing down head-first like squirrels.

Other cat species lack that adaptation, which is one reason why we often hear about domestic cats who find themselves uncomfortably high up in trees or on utility poles, refusing to come down for days despite hunger and coaxing by humans trying to help.

A margay demonstrating its ability to climb head-first down a tree thanks to its unique ankle joints. Credit: James Kaiser

Margays are outstanding jumpers in addition to their unrivaled climbing ability, able to leap six to eight times their own height. It’s easy to see how these diminutive cats can intercept birds and monkeys far above the jungle floor in addition to hunting terrestrial mammals.

Indeed, using their large tails as a counterbalance, margays traverse branches with a swiftness and sure-footedness that rivals the gibbon.

The jungle’s tricksters

They’re also remarkably clever. Scientists have documented margays mimicking the vocalizations of monkeys, their favorite prey. In one documented example, a margay imitated the call of a baby tamarin, then ambushed the adult tamarins who approached to investigate the sound.

That’s a surprising adaptation for a cat species, and we should be thankful they’re tiny. The thought of tigers or leopards with that ability is terrifying.

Margays are solitary and due to their size, they’re both predator and prey. Because of that, these tiny cats spend the majority of their time well above ground level and are usually found deep in old growth jungles where they can blend into dense vegetation, hiding among leaves and branches, where their coat patterns help them blend in.

Like all wildcats, margays face increasing pressure from habitat loss, poaching and other threats, and they’re classified as near-threatened on the IUCN Red List.

Credit: Anderson Cristiano Hendgen via Wikimedia
Credit: Wikimedia Commons

Header image credit Clément Bardot via Wikimedia Commons

Copyright 2026 – Pain In The Bud – May not be reproduced without permission

Previously:

Amazing Cats: The Mysterious Marbled Cat
Amazing Cats: The Rusty-Spotted Cat
Amazing Cats: ‘He Who Kills With One Bound’
Amazing Cats: The Puma

Amazing Cats: The Sunda Clouded Leopard

Amazing Cats: The Adorable Colocolo, Feline of the Pampas

Amazing Cats: The ‘Fire Tiger’ Is The Stuff Of Legend

Amazing Cats: Ocelots Love Trees, Water And Calvin Klein’s Obsession For Men

Amazing Cats: Pallas Cats Are The Grumpy Little Hobbits Of The Feline World

Amazing Cats: The Jaguarundi Is Adept, Adaptable And Mysterious

A Colorado Woman May Have Been Killed By A Puma, But We Should Wait For The Facts

There are lots of questions but very few answers so far related to the death of a woman on a hiking trail in northern Colorado. Authorities have not confirmed a puma attack.

A woman who was found dead on a hiking trail may have been killed by a mountain lion, state authorities say.

Several hikers were making their way along the Crosier Mountain Trail in northern Colorado at noon on Thursday when they came upon a woman laying on the ground and a puma about 100 yards away from her, according to police.

The hikers made noise and tossed rocks to scare the cat off, then one of them — a medical doctor — checked the woman and found no vital signs.

They notified authorities, who launched a massive search by air and ground, closing down the neighboring trails and bringing search dogs into the effort.

The search teams found and killed two mountain lions, who will be autopsied to determine if either had human remains in their stomachs. If they do not, rangers and police will keep looking, as they say Colorado law requires them to euthanize animals who have killed humans, local news reports said.

Pumas, also known as mountain lions, cougars, catamounts, screamers and many other names, are the widest-ranging cats on Earth, found throughout South America, the west of the US, and southern Canada. Credit: Charles Chen/Pexels

It’s important to note that there are no autopsy reports so far. Police don’t know how the woman died, if she was killed by the puma spotted near her, or if the animal approached after her death.

If an investigation does determine a puma was responsible, it’s crucial to place the incident in context. The last recorded fatal mountain lion attack in Colorado was in 1999, and was not confirmed. The victim, a three-year-old boy named Jaryd Atadero, wandered away from the hiking group he was with and was never seen again.

Search efforts in the following days and weeks didn’t turn up anything, but in 2003 another group of hikers found part of Atadero’s clothing. His partial remains were later found nearby.

Police said Atadero could have been killed by a mountain lion, but there’s no definitive evidence and his cause of death remains a mystery.

Aside from that incident, there have been 11 recorded, non-fatal injuries attributed to pumas in Colorado in the past 45 years despite as many as 5,000 of the wildcats living in the state’s wilderness.

Nationally there is some discrepancy in record-keeping, but most sources agree there have been 29 people killed by mountain lions in the US since 1868. By contrast, more than 45,000 Americans are killed in gun-related incidents per year, about 40,000 Americans are killed in traffic collisions annually, and between 40 and 50 American lives are claimed by dogs per year.

Americans are a thousand times more likely to be killed by lightning than by a puma, according to the US Forestry Service.

Despite their size, pumas are more closely related to house cats and small wild cats. They can meow, but they cannot roar. Credit: Caleb Falkenhagen/Pexels

Cougars are elusive, do not consider humans prey, and the vast majority of the time go out of their way to avoid humans. Most incidents of conflict are triggered by people knowingly or unknowingly threatening puma cubs, or cornering the shy cats.

Despite that, there’s confusion among the general public. Mountain lions are routinely confused with African lions, so some Americans believe they are aggressive and dangerous.

Pumas, known scientifically as puma concolor, are part of the subfamily felidae, not pantherinae, which means they are more closely related to house cats and smaller wildcats than they are to true big cats like lions, tigers, jaguars and leopards.

Pumas can meow and purr, but they cannot roar. Their most distinctive vocalization is the powerful “wildcat scream,” leading to nicknames like screamer.

In the Colorado case, police say they believe the victim was hiking alone. Her name hasn’t been released, likely because authorities need to notify next of kin before making her identity public.

This is a tragedy for the victim and her family, and we don’t wish her fate on anyone. At the same time, we hope cooler heads prevail and this incident does not spark retaliatory killings or misguided attempts to cull the species.

How Four Wildcats Co-Exist In The Jungles Of Guatemala

Jaguars, pumas, ocelots and margays are able to thrive in the same jungles, a unique arrangement that sheds light on how each species lives.

The jungles of Guatemala are teeming with life.

The guttural calls of howler monkeys haunt the rainforest from above, where scarlet macaws hop branches in flashes of red, yellow and blue.

On the forest floor opossums, peccaries, and oversize rodents called pacas move through dense brush, occasionally picked out by the few shafts of light able to break through the canopy. Ocellated turkeys plumed in iridescent copper and emerald advertise themselves to potential mates with thumping sounds, while spider monkeys perch on the weathered stones of long-forgotten Mayan cities that were swallowed by the jungle centuries ago.

As in most tropics, the apex predators are cats — four different species, to be exact. Jaguars sit at the top, unchallenged. Pumas, close in size if not ferocity, also find sustenance in the rainforest alongside ocelots and margays.

Margays are smaller than house cats and resemble tiny ocelots. They’re outstanding climbers, expert hunters, and spend most of their time in trees. Unlike most cat species, which are crepuscular, margays are nocturnal. Credit: Clement Bardot/Wikimedia Commons

How do four medium carnivorous species exist side by side?

By dividing time, space and items on the menu, according to a new study.

Ocelots are extremely adaptable: they’re excellent climbers and swimmers, and can thrive in various environments. Credit: Victor Landaeta/Pexels

The felids hunt at different levels of the jungle at different times of day, and while there’s overlap between prey, each species has its own distinct diet, according to a research team from Oregon State University. Their paper, Niche partitioning among neotropical felids, was published earlier this month in the Journal of Animal Ecology.

As the big kids on the block, jaguars primarily eat peccaries (pig-like ungulates that weigh up to 88 pounds), armadillos, deer and, sadly, ocelots. Apparently membership in Club Felid does not grant the smaller wildcats a pass. Ocelots top out at about 35 pounds, while the largest jaguars weigh in at about 350 pounds, making the smaller cats easy prey.

Pumas opportunistically prey on peccaries and brocket deer, but the majority of their diet is composed of monkeys, both spider and howler. Ocelots and margays naturally go for smaller prey, sticking mostly to rodents and opossums.

As the largest and most powerful cats in the western hemisphere, jaguars are the apex predators of their environment. Credit: Atlantic Ambience/Pexels

While jaguars hunt on the ground and have a well-documented habit of slipping into the water to prey on caiman and crocodiles, pumas, ocelots and margays take advantage of their climbing abilities and lighter frames to reach arboreal prey. That allows pumas, for example, to snag monkeys and arboreal opossum species from the canopy, so they don’t have to compete with jaguars.

The team verified the “spatial, temporal, and dietary niche partitioning” within the Maya Biosphere Reserve by using ground camera traps, arboreal camera traps and fecal samples, which allowed them to confirm the prey each species has been consuming.

Interestingly, margays are the pickiest — or perhaps most limited — of the bunch, preying on only seven species, while the other three cats regularly hunt between 20 and 27 different kinds of animals.

The information gleaned from the study not only helps researchers understand how these species interact with their environment, but also can help guide conservation decisions to safeguard them against extinction.

Pumas, also known as cougars and mountain lions, are adaptable and elusive. Credit: Catherine Harding Wiltshire/Pexels

https://news.oregonstate.edu/news/vertical-hunting-helps-wild-cats-coexist-guatemala%E2%80%99s-forests-study-finds

At Almost 700lbs, Hercules The Tiger Is A Symbol Of His Species’ Comeback

The huge Bengal may be the biggest tiger in India, and has already become a draw for tourists visiting from other parts of the country.

Hercules looks like a heavyweight boxer reincarnated as a tiger.

The massive apex predator was virtually unknown outside of India’s Kumaon district until this week, when a tourist posted a short video of the nearly 700-pound animal lumbering out of the brush and into clear view as he crossed a dirt path between rural villages.

The Bengal, who may be the biggest cat in India, is majestic. His gait is leisurely, as if he knows that anyone or anything he may encounter will clear a path the moment they see him. His fur doesn’t hide the rippling muscle underneath, and as he spots a group of tourists with cameras aimed at him, he bares his teeth momentarily, then pretends as if they don’t exist as he takes his sweet time crossing the path.

“In my entire career, I have never seen such a giant tiger,” Prakesh Arya, a divisional forest officer, told the New Indian Express.

For conservationists, tourists and the government of India, whose national animal is the Bengal, Hercules’ existence is proof that Project Tiger is on the right track. The project is a national effort to save the iconic species, grow its population, and protect it from poachers.

Hercules’ territory includes Ramnagar, a town in northern India known as they gateway to Jim Corbett National Park. The preserve is named after the renowned tiger hunter who took down the Demon of Champawat, a tigress who had killed at least 435 people during a decade-long rein of terror.

Corbett, who described tigers as “large-hearted gentlemen” who were unfairly maligned, was known for his prowess in hunting down man-eating tigers and leopards, but later in life he turned to conservation, realizing that Earth’s biggest cats were in danger of extinction if drastic efforts weren’t taken to save them. That was a century ago.

Now India devotes significant resources to their protection and well-being, with an entire corps of dedicated professional rangers and anti-poaching teams tracking the animals and constantly patrolling the vast country’s 58 tiger preserves, which cover 82,836.44 square kilometers.

A large tiger cools off in water on a hot day. Credit: Warren Garst/Wikimedia Commons, Colorado State University Library

For tigers like Hercules, having large contiguous ranges gives them the chance to live the way nature intended. Experts say the abundance of prey in the reserves, especially in the region Hercules calls home, has resulted in larger, more robust cats of the type that were once a memory.

“This is a clear symbol of the rich biodiversity and the success of our management efforts in this forest area,” Arya said.

In turn, the presence of the iconic cats has revitalized tourism. Tourists who have seen Hercules described the experience as “overwhelming.”

“Seeing ‘Hercules’ was an unforgettable experience,” Priya Sharma, a tourist from Delhi, told the Express.