research – Page 2 – Pain In The Bud

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

Do You Speak Cat? This Quiz Tests Knowledge Of Real Feline Language

Studies show most of us are pretty bad at interpreting our cats’ moods. A research team in Australia wants to change that.

Cats are constantly telling us how they feel, but many of us aren’t listening.

We’re not talking about chirping, trilling and meowing, although those are some of the ways our cats try to communicate with us.

While they might seem protective of their own thoughts and feelings, cats are actually transparent, and they can’t lie.* Their tails, ears, whiskers, facial expressions and body language all broadcast a cat’s mood.

The question is, are we picking up that broadcast?

In The Conversation, the University of Adelaide’s Julia Henning introduces us to a quiz she designed to answer that question, and invites us to take it.

The goal: to correctly assess each cat’s mood. What I liked most was that we’re asked to evaluate videos — clear, well-lit high resolution clips — instead of the low resolution stills that are often used for quizzes like this.

Henning has been studying the human-cat communication issue because when we misread cats, there’s a good chance we’re stressing them out. Henning and her team published the results of a study in September in which 368 participants from Australia were asked to evaluate a series of clips human-feline interaction.

It turns out they didn’t do so well at reading the signs that a cat is agitated, stressed or doesn’t want to play.

“For videos of cats who weren’t playing and were showing subtle negative cues (such as sudden tension in the body or avoiding touch), participants only recognised the negative cues about as well as chance (48.7%),” the authors of the study wrote.

Even when study participants correctly read a cat’s ears, tail, whiskers and body language, some of them indicated they’d do things that would unknowingly make a cat more agitated and stressed. A classic example is trying to pet a cat’s belly and misinterpreting their derpy way of trying to block you as a playful gesture.

Did you know? Approximately 96% of Buddy’s communication is related to yums.

In the paper, which was published in Frontiers in Ethology, Henning and her colleagues lay out the case for making sure we — the people who take care of cats — are sensitive to what our little buddies are feeling.

It’s not just about strengthening the bond, although that’s an important part. It’s about reducing stress and miscommunication, and increasing quality of life.

Cats are incredibly sensitive to our actions and moods because we are the most important living beings in their lives. We feed and house them, and we’re their pals. If we’re constantly subjecting them to play they don’t like or overstimulating them, they get stressed, and stressed cats can become depressed, sick or resentful cats.

If we want to make sure our buddies live their best lives, we have to understand what they’re trying to tell us.

(*) Except when it comes to food. When food is involved, these innocent, cute little furry creatures become master manipulators and can convince anyone they’re starving.

Note: The first version of this story linked to the study page twice when the first link should have pointed to the quiz. It’s fixed now, and email subscribers can follow the link through this version of the story. Apologies for the error.

Header image credit: cottonbro studio/Pexels

Jane Goodall Forever Changed Our Understanding Of Animals

Goodall spent the better part of seven decades with the chimpanzees of Tanzania. Her discoveries were so profound, they forced the scientific community to reevaluate what separates humanity from other animals.

As I’m sure most of you have heard, Jane Goodall passed away Wednesday of natural causes. She was 91.

Goodall’s work was revolutionary and her career was extraordinary. It’s difficult to imagine now, but when Goodall first pitched camp in Tanzania’s Gombe Stream National Park in July of 1960, the scientific community knew virtually nothing about great apes.

Goodall wasn’t exactly welcomed with open arms. Being female and photogenic were the first two strikes against her in the eyes of the establishment.

She was self-taught, didn’t have a degree (she later earned a doctorate at Cambridge), and perhaps her biggest “sins” involved empathy and an attitude more buttoned-up scientists saw as anthropomorphizing the animals.

Goodall with a Gombe chimpanzee. Credit: Wikimedia Commons

Goodall gave the chimps names (a no-no at the time among scientists), carefully observed and recorded their family trees, worked out the obtuse — to human eyes– social hierarchy of primate troops, and witnessed behavior that no one had ever seen before.

She saw friendship, love and loyalty among the chimpanzees, witnessed a bitter war between the Gombe troop and a splinter group, followed families over generations, and saw one chimp die of a broken heart after his mother passed away. (I recommend Goodall’s 1990 book, Through A Window: Thirty Years With The Chimpanzees of Gombe, and the 2002 follow-up, My Life With Chimpanzees, for anyone who wants to read more.)

Her first major contribution, in October of 1960, not only fundamentally challenged our assumptions about animals, it forced us to change the way we regard our own species.

Goodall, observing the chimpanzees from a distance despite the rain that day, watched as a male she named David Graybeard repeatedly dipped blades of grass into the Earth. Curious, Goodall approached the site after Graybeard left, grabbed a few blades of grass and imitated what she’d seen the chimp doing.

She was astonished when she pulled the grass out and the strands were covered in termites. David Graybeard had been eating. He was using a tool to eat!

Goodall at Gombe in the early 1970s. The primatologist secured unprecedented access to the chimpanzees by gaining their trust. Credit: Wikimedia Commons

The discovery was huge because scientists believed tool use was, at the time, limited to mankind. We build and use tools, animals don’t, the thinking went.

When Goodall reported her findings to her mentor, anthropologist Louis Leakey, his prompt response indicated the gravity of her discovery: “Now we must redefine ‘tool,’ redefine ‘man,’ or accept chimpanzees as humans.”

Goodall never stopped working with the chimpanzees of Gombe, and today her formerly humble camp has become a permanent compound where researchers — all inspired by Goodall’s story — continue to study our genetic relatives.

But in her later years, Goodall became known for her activism just as much as her work as a scientist. She traveled constantly, engaging audiences on the subjects of animal conservation, respect for nature and understanding our place in the natural order. It’s a job that has become more necessary than ever as relentless human expansion, habitat fragmentation and human behavior push thousands of species toward extinction.

We lost Frans de Waal, the famous primatologist, in 2024. Now we’ve lost Goodall, and Sir David Attenborough is less than six months shy of his 100th birthday. We’re going to need people to pick up where they left off, and the job is much more difficult than it looks, requiring expertise, charisma and the ability to connect with audiences who know little about the subject matter.

But that’s a problem for another time. For now, let’s remember Jane and appreciate all she’s done over the span of an incredible life and career.

‘What Owning A Cat Does To Your Brain’

Positive contact with our furry friends releases happy chemicals for both human servant and feline master, improving their bond.

Happy Cater, uh, unday!

We’ve got no immature cat humor for you today, but I thought PITB readers might be interested in this essay from The Conversation, which despite its ominous title actually goes into some detail about research showing the positive effects of bonding with a cat.

Affection between you and your feline friend results in a burst of oxytocin — the happy brain chemical — for both of you.

But crucially (and here’s where I feel validated for constantly preaching this), your cat enjoys the benefit only if the little one is securely attached and is not forced into interaction.

I’ve said it so many times, I feel like a broken record, especially because the web is saturated with articles that ask “How Can I Make My Cat Like/Love Me?“

And the answer, of course, is that you can’t.

That’s part of what makes cats so awesome. We have to earn their trust and affection, and a major part of that process is respecting our cats’ feelings. That means we let them come to us, we stop petting them when they’ve had enough, and we don’t prevent them from leaving when they decide they want to lay on the couch or the floor instead of our laps.

Cats grant us benefits beyond oxytocin boosts, of course, and the linked article goes into that as well. It’s well worth a read, even if you’re an old pro at cat whispering.

President Buddy: Not Funny!

It’s obvious I model President Buddy’s behavior after a certain someone in addition to dialing his own traits up to 11, but in the wake of recent news, a story I’d written no longer feels funny.

Not because it was offensive, but because satirizing current events just feels inappropriate with all that’s been going on, from our extreme polarization and political violence, to the sad state of global affairs.

At the same time, I spent quite a bit of time making another denomination of Cat Dollars, and since there’s no longer any satirical story for it, I figured I’d share it here.

President Buddy sure does like seeing his portrait everywhere. This time I skipped the powdered wig and gave him a more modern appearance:

Meowster Money and Meowster Delicious are the treasurer and secretary of yums, respectively. A thousand cat bucks is a lot of cans! (Or snacks.)

In the meantime I’ve been working on some designs I hope to turn into t-shirts and possibly other things like prints. They range from a regal-looking lion to a jaguar roaring in the night with a retrofuturistic feel. Watch this space for more details in the near future!

A Missing Genetic Sequence Leads To Orange Fur In Cats. Could It Be Responsible For Behavioral Differences Too?

Scientists have uncovered the elusive mechanisms behind coat color expression, opening the door to a new question: is fur pigment connected to personality?

When Professor Hiroyuki Sasaki retired, he wasn’t done with science. He just wanted to use it to better understand his cats.

The Japanese geneticist raised more than $73,000 from Japanese and international cat lovers and put together a team, including partners from the US. Then he began the hard work of scrutinizing feline DNA to find out why some cats are orange, and why most all-orange cats are male while virtually all calico and tortoiseshell cats, whose coats have splotches of orange, are female.

It turns out there’s no genetic instruction telling the fur to take on an orange pigment — it’s the absence of a segment of DNA, which governs pigment production, that does it.

In other words, ginger cats are mutants.

Most fully-orange cats are male because the mutation removes the DNA segment in the X chromosome. As males have X and Y chromosomes, they only need the mutation in the single X chromosome for their coats to express in that shade.

Lots of cat lovers swear that coat color and temperament are connected.

Females have an XX chromosomal arrangement, so they need the mutation in both chromosomes to turn tangerine. If the mutation only shows up in one chromosome, you get patches of the color instead of a consistent coat.

That explains why 80 percent of ginger cats are male, and why only one in 3,000 calicos and tortoiseshells are male. A male cat would need an extra X chromosome, XXY, to be born with a calico or tortoiseshell coat. One of the side effects, however, is sterility.

Scientists estimate only one in a thousand male calicos/tortoiseshells can reproduce and pass their unique mutations on.

It’s not just coat color either. The mutation impacts skin and eye color, which is why a ginger cat might have a pink nose compared to the terracotta shade of a void cat or a silver tabby.

Are orange cats really more friendly and silly?

So how does this relate to temperament, and the many people who attest to a particular personality associated with orange cats? Some people say ginger tabbies are more loyal, affectionate and social than cats of other coat colors, but they’re also more prone to doing boneheaded things.

The stereotypes have picked up steam online, where people often share memes depicting orange felines as earnestly derpy, but they may be on to something — or at least, it can’t be ruled out until we know more.

Ginger cats are not the sharpest claw on the paw, according to popular memes.

Because of the missing piece of genetic code, a specific gene, ARHGAP36, isn’t “expressed.” Like so many genes, scientists don’t fully understand everything ARHGAP36 impacts, or how alterations can lead to unexpected changes elsewhere.

“Many cat owners swear by the idea that different coat colours and patterns are linked with different personalities,” Sasaki told the BBC. “There’s no scientific evidence for this yet, but it’s an intriguing idea and one I’d love to explore further.”

Header image via Pexels