50 Fascinating Facts About Cats

Seregraff/iStock via Getty Images
Seregraff/iStock via Getty Images

Happy International Cat Day! (Not that you need a reason to celebrate the kitty in your life.) If you want to celebrate Felis silvestris in all its furry glory, try sharing some of these 50 bits of cat trivia.

  1. Cats spend around 30 to 50 percent of their day grooming themselves. This behavior serves several purposes: It helps cats tone down their scent so they can avoid predators, it cools them down, it promotes blood flow, and it distributes natural oils evenly around their coat, allowing them to stay warm and dry. Grooming also serves as a sign of affection between two cats, and it’s thought that saliva contains enzymes that serve as a natural antibiotic for wounds.
  1. Just because a cat is purring doesn’t mean the cat is happy. Cats often make the sound when they’re content, but they also purr when they’re sick, stressed, hurt, or giving birth.
  1. Scientists don’t quite know why cats purr, but one hypothesis is that the sound frequency of purring—between 25 and 150 Hertz—"can improve bone density and promote healing," theorizes Leslie A. Lyons, an assistant professor at the School of Veterinary Medicine at the University of California, Davis, in an article for Scientific American. "Because cats have adapted to conserve energy via long periods of rest and sleep, it is possible that purring is a low energy mechanism that stimulates muscles and bones without a lot of energy."
  1. Ever wonder why catnip lulls felines into a trance? The herb contains several chemical compounds, including one called nepetalactone, which a cat detects with receptors in its nose and mouth. The compounds trigger the typical odd behaviors you associate with the wacky kitty weed, including sniffing, head shaking, head rubbing, and rolling around on the ground.
  1. More than half of the world’s felines don’t respond to catnip. Scientists still don’t know quite why some kitties go crazy for the aromatic herb and others don’t, but they have figured out that catnip sensitivity is hereditary. If a kitten has one catnip-sensitive parent, there’s a one-in-two chance that it will also grow up to crave the plant. And if both parents react to 'nip, the odds increase to at least three in four.
    Tuxedo cat plays with a mouse toy
    iStock.com/dzika_mrowka
  1. Can’t afford a private eye? A feline might be able do the job for free. In the 1960s, ambassador Henry Helb—who then lived in the Dutch Embassy in Moscow—noticed that his two Siamese kitties were arching their backs and clawing at one of the walls. Helb had a hunch that the cats heard something he couldn’t, and sure enough, he found 30 tiny microphones hidden behind the boards.Instead of busting the spies, Helb and his staff took advantage of the surveillance and griped about household repairs or packages stuck in customs while standing in front of the mics. The eavesdroppers took care of their complaints—and apart from Helb and his companions, no one was the wiser.
  1. Chances are, your cat hates your music—but they might like tunes written by composer David Teie, who partnered with animal scientists to make an album called Music for Cats. Released in 2015, the songs are “based on feline vocal communication and environmental sounds that pique the interest of cats,” Teie’s website states.
  1. If you adore felines, you’re in good company: Many of history’s most famous figures—including Florence Nightingale, Pope Paul II, Mark Twain, and the Brontë sisters—all owned, and loved, cats.
  1. Still, the title of history’s craziest cat man might go to Abraham Lincoln. Mary Todd Lincoln was once asked if her husband had any hobbies. Her response? “Cats!”
  1. A kindle isn’t just an e-reader—it’s also a word that’s used to describe a group of kittens born to one mama cat. Meanwhile, a group of full-grown cats is called a clowder.
    Woman holding a bunch of kittens
    iStock.com/skynesher
  1. The Guinness World Records doesn’t award the world’s fattest pets since officials don’t want to encourage people to overfeed their pets. But in 2003, a Siamese cat named Katy was a serious contender for the record. Katy, who lived in Asbest, Russia, was given hormones to stop her mating. The treatment had an unintended side effect: It dramatically increased her appetite, and the hungry kitty ballooned to 50 pounds.
  1. A rich British antique dealer named Ben Rea loved his cat Blackie so much that when he died in 1988, he left most of his estate—totaling nearly $13 million—to the lucky (albeit likely indifferent) feline. The money was split among three cat charities, which had been instructed to keep an eye on Rea’s beloved companion. To this day, Blackie holds the Guinness World Record for Wealthiest Cat.
  1. As for the world’s oldest living cat, the title belongs to a sometimes-cranky white-and-orange kitty named Rubble, who celebrated his 30th birthday in June.
  1. Ever wondered why your cat likes to rhythmically massage you with its paws? Experts haven’t figured out why cats like to knead, but they’ve come up with several possible explanations, one being that your kitty is trying to mark their "territory" (that’s you!) with the scent glands in their paws. And since kittens knead their mama’s belly to stimulate milk production, there’s also a chance that they carry this behavior into adulthood—a phenomenon known as a "neotenic behavior."
  1. Looking to elevate your vocabulary? Try using the word ailurophile in a casual conversation. It’s a fancy word for "cat lover," and it’s derived from the Greek word for cat, ailouros, and the suffix -phile, meaning "lover." Conversely, the word ailurophobe—a combination of ailouros plus phobe—describes someone who hates cats.
  1. In 2015, a 6-by-8.5-foot oil painting billed as the "world’s largest cat painting" sold at auction for more than $820,000. It’s called My Wife's Lovers, and it once belonged to a wealthy philanthropist named Kate Birdsall Johnson. She loved felines so much that she owned dozens (some even say hundreds) of kitties, and commissioned a painter to capture her Turkish Angoras and Persians in their natural element. Since Johnson’s husband called the clowder "my wife’s lovers," the nickname was selected as the artwork’s title.
  1. Contrary to popular belief, cats don’t always land on their feet when they fall. But more often than not, all four paws end up touching the ground. Cats have a fantastic sense of balance, so they’re able to tell “up” from down and adjust their bodies accordingly. If they sense they’re plummeting downwards, they twist their flexible backbones mid-air, allowing them to right themselves so they don’t fall splat on their backs. Additionally, cats can spread their legs out to “parachute” through the air, plus they’re also small, light-boned, and covered in thick fur—meaning their fall isn’t going to be as hard as, say, a dog’s.
  1. In 2018, America’s most popular cat breed was the Exotic—a flat-faced kitty that’s essentially a short-haired version of a Persian cat. The second most beloved breed was the Ragdoll, and the British Shorthair ranked at No. 3.
    An orange Exotic cat sits on a black mirror
    iStock.com/Seregraff
  1. The musical Cats is based on a collection of T.S. Eliot poems called Old Possum’s Book of Practical Cats. Published in 1939, it follows the whimsical antics of a group of felines—but the manuscript was originally intended to feature dogs, too. In the end, though, Eliot determined that "dogs don’t seem to lend themselves to verse quite so well, collectively, as cats."
  1. On October 18, 1963, French scientists used a rocket to launch the first cat into space. The feline’s name was Félicette, and she made it safely to the ground following a parachute descent.
  1. A train station in Southeastern Japan is presided over by an adorable "stationmaster": a 6-year-old calico cat named Nitama. The Kishi train station near Wakayama City hired Nitama in 2015, just a few months after its prior feline mascot, Tama, died from acute heart failure at the age of 16.
  1. Even if you’re not allergic to cats, your cat might be allergic to you. One in 200 cats are believed to have asthma—and this number continues to rise among indoor kitties as they're more frequently exposed to cigarette smoke, dust, human dandruff, and pollen.
  1. Greyhound dogs are the ones with a bus line named after them, but cats are pretty speedy, too: The average running feline can clock around 30 mph.
  1. Nobody quite knows why black cats are considered to be bad luck, but this myth has persisted across Western civilization for centuries. Felines with dark fur first became linked with the Devil during the Middle Ages, and when the Black Death pandemic ravaged Europe in the mid-14th century, superstitious individuals responded by killing off the black cat population. Little did they know that vermin carried the deadly disease and that the rodent-eating cats actually helped curb its spread. And black cats eventually became associated with witches because women accused of practicing black magic tended to adopt alley cats as companions.
  1. Black cats are considered to be a bad omen in the U.S., but in Great Britain and Japan, they’re perceived as auspicious. In the English Midlands, new brides are given black cats to bless their marriage, and the Japanese believe that black cats are good luck—particularly for single women. Meanwhile, the Germans believe that a black cat crossing your path from left to right is ominous, but if the feline switches directions and goes right to left, it’s fortuitous.
    Black cat looks right at the camera
    iStock.com/oksy001
  1. The ancient Egyptians revered cats, and even worshiped a half-feline goddess named Bastet. People who harmed or killed cats faced harsh legal sentences, including the death penalty.
  1. The world’s first major cat show was held at London’s Crystal Palace in July 1871. Hundreds of felines (and dozens of breeds) were placed on display, and around 200,000 guests are said to have attended the event.
  1. Remember Nyan Cat? The famous viral meme of a gray kitty with a Pop-Tart body who shoots rainbows from its posterior (the internet, folks!) was based on a real-life feline: a Russian Blue named Marty, owned by Nyan cat illustrator Chris Torres.
  1. Most cats weigh in the single or low-double digits, but some breeds are truly huge. For instance, Norwegian Forest Cats, Maine Coons, and Ragdolls often range in weight from 15 to 22 pounds.
  1. Long before Keyboard Cat took the internet by storm, inventor Thomas Edison filmed two kitties "boxing" inside a ring. Created in 1894, the brief clip proves that humans have been obsessed with cute cat videos since long before the advent of YouTube.
  1. Remember Socks the Cat, the black-and-white tuxedo cat owned by Bill Clinton’s family during his time in the Oval Office? During the early 1990s, Super Nintendo Entertainment System created a video game called Socks the Cat, featuring the First Feline. It was never officially released, and when the game’s publisher shut down, Socks the Cat was lost for years, until video game collector Tom Curtin bought the (reportedly) only existing copy, purchased the rights, and partnered with game publisher Second Dimension to give it a second life. Socks the Cat was slated for an official release in 2017.
  1. Some Maine Coon cats are born with six toes.
  1. Sphinx cats don’t have fur coats, but their body temperature is still four degrees warmer than a typical feline.
  1. Male cats have barbed penises. While painful for the lady cat, they do serve a purpose: The barbs stimulate the vulva, allowing the female to ovulate, and they also keep her from escaping mid-coitus. (Felines are typically loners, and not that into sex.)
  1. If you went to college, you’re more likely to have a cat than a dog. In 2010, researchers from the University of Bristol surveyed 3000 people about their pets, geography, and scholastic history. They found that people with university degrees were 1.36 times more likely to own a kitty than other pet owners. This phenomenon might be attributed to the fact that cats are low-maintenance, and therefore better companions for accomplished people with busy careers.
    Portrait of a Siberian kitten against a peach colored background
    iStock.com/jkitan
  1. Why do cats love to cuddle up in boxes? Animal experts think that the enclosed spaces make felines feel more protected, secure, and important—kind of like they’re back in the womb. (Sure enough, researchers found that when shelter cats are provided with boxes to cuddle up in, they adjust faster and are less stressed than kitties that aren't given boxes.) Also, sleeping in a box might help a feline retain more body heat so it stays nice and toasty, and therefore relaxed.
  1. Experts think that cats hate water because it’s uncomfortable to have soggy fur, or because it’s frightening for a kitty to lose control of its buoyancy.
  1. While many kitties hate water, not all do. Breeds including the Turkish Van, Maine Coons, and Bengals are said to enjoy taking a dip every now and then.
  1. Cats are genetically predisposed to not be able to taste sweets. They will likely nibble off your plate if it contains meat, but they’ll leave it alone if it’s laden with cake.
  1. A cat has 244 bones in its entire body—even more than a human, who only has 206 bones.
  1. Nobody knows quite why cats meow, but experts think they might be channeling their inner kitten. Baby cats make the plaintive noises to get their mother’s attention, but as full-grown felines, they don't meow while interacting with other cats. Some experts think that felines use the noises they made as infants with humans to convey their emotions and physical needs.
  1. Cats sweat through their paws (and sometimes when they get very hot they pant).
  1. According to one estimate, a cat spends nearly two-thirds of its life asleep.
  1. The iconic Algonquin Hotel in midtown Manhattan owns a pampered lobby cat named Hamlet. He's one of a dozen rescue felines that have lived in the storied institution since the early 1920s. Hamlet took over the post following three Matildas. (Matilda III passed away in October 2017.)
  1. In the 1870s, the city of Liège, Belgium tried to train 37 cats to deliver the mail. Letters were enclosed in waterproof bags tied around the kitties’ necks, but it turns out that cats weren’t great at delivering the goods on time (or to the correct address).
  1. Approximately 200 feral cats roam the grounds of Disneyland, where they help control the amusement park’s rodent population. They’re all spayed or neutered, and park staffers provide them with medical care and extra food.
  1. The Hungarian word for "quotation marks," macskaköröm, literally translates to "cat claws."
    A cat stretches its paws and claws
    iStock.com/vizland
  1. Napoleon, Caesar, Genghis Khan, and Hitler are all said to have hated cats.
  1. There are an estimated 85.8 million pet cats in the U.S. In contrast, there are only an estimated 78 million dogs.
  1. A cat can jump up to five times its height, or six times its length—and make the entire thing look easy.

10 Ginormous Facts About Coconut Crabs

Janos/iStock via Getty Images
Janos/iStock via Getty Images

They're huge and antisocial. They will steal your silverware and can rip apart whole coconuts with their claws. Grab a piña colada and enjoy these 10 ginormous facts about the amazing coconut crab.

1. Coconut crabs are colossal.

Native to islands in the Indian and southern Pacific oceans, are truly humongous. They can weigh 9 pounds and measure 3 feet from leg to leg. Coconut crabs are the largest land-living arthropods—the phylum of joint-legged creatures that includes crabs, insects, spiders, and scorpions. Even Charles Darwin was stunned by their “monstrous size.”

But be aware: Occasionally, a viral photo circulates that exaggerates the coconut crab’s size. As biologist Michael Bok explains, the coconut crab in that infamous photo is normal sized, but the trash can is unusually small.

2. Coconut crabs are actually hermit crabs.

Coconut crab
Sandwich, Flickr // CC BY-NC-ND 2.0

Where does such a bizarre animal fit in the animal kingdom? Are they lobsters? Tarantulas? Space aliens? In fact, Birgus latro is a kind of hermit crab.

You may have seen smaller hermit crabs on a trip to the beach—or for sale at a pet shop. They take shelter inside abandoned snail shells, carrying them around as portable homes. But if coconut crabs are hermit crabs, then why don’t they live in shells? Well, they do—when they’re young and still small.

3. Coconut crabs quickly outgrow their borrowed shells.

Like other crabs, hatchling coconut crabs begin their lives floating freely at sea. After about a month of eating and growing, they find a snail shell and move in. The little coconut crabs carry this mobile home as they begin to transition to a land-based life.

A seashell is a nice, protected place to live, but it has its drawbacks [PDF]. As a crab gets bigger, its shell gets tighter—like an old pair of shoes on a kid who’s growing fast. The crab needs to find a bigger shell and make a quick switch. And that larger home will be heavier to tote around.

So, after a year or so of inhabiting shells, the coconut crab makes a major lifestyle change. It crawls out and hardens the parts of its body that were once protected by the shell by regrowing layers of calcium-based tissues, a process called recalcification. Without its old home, it’s free of size constraints. Now, unlike other hermit crabs, it can become enormous.

4. Coconut crabs eat coconuts, of course ...

This might seem obvious from the coconut crab’s name. But if you’ve ever tried to crack open a coconut, you know that it’s a steep challenge. In fact, a lengthy scientific debate once raged about whether coconut crabs were really able to open the fruit. It turns out that they’re up to the challenge—but they don’t just pop open their prize and dig in.

Breaking into a coconut is a mighty ordeal even if you’re a heavily armored crustacean the size of a small dog. Coconut crabs first use their claws to scrape away the fibrous coating. This can take hours or days. Finally, they stab into the fruit at a weak point and rip it open.

This diet helps coconut crabs grow large: those with access to coconuts may be twice as massive as those without. But eating the fruit isn’t essential for their survival. So what other items do the largest land-living arthropods shove into their maw?

5. ... but they also eat dead animals, their own body parts, and each other.

As well as the occasional biscuit, as you can see in the video above. (Note: Do not feed biscuits to coconut crabs.) A coconut crab’s diet may include other tropical fruits, fallen plant material, dead and decaying animals, rats, and other crab species. They’ll even eat members of their own kind. In fact, biologist Mark Laidre says they only relatively recently evolved to eat coconuts—a skill unique to modern coconut crabs—which helps them to eat each other less.

They also eat their own discarded body parts. As coconut crabs grow, they periodically molt their tough outer layer (the exoskeleton) and grow a new one. Once they’re done molting, which takes about a month, they gobble up their own exoskeleton.

6. Coconut crabs have an amazing sense of smell ...

Coconut crabs often forage at night. How do they find food when they’re wandering around in the dark? They sniff it out. These animals have a strong, highly efficient [PDF] sense of smell. In fact, a large portion of their brain is devoted to detecting odors.

7. ... which might explain why they're thieves.

Coconut crabs are also known as robber crabs because they snatch silverware and other objects and carry them away. Some people have even advanced the gruesome theory that Amelia Earhart’s remains are missing because coconut crabs hauled them down into their burrows. The thievery might be tied to that incredible sense of smell. Coconut crabs ignore objects that have been washed clean of scents, suggesting that they may only abscond with things that carry a faint whiff of food.

8. Coconut crabs are pretty antisocial.

Adult coconut crabs live alone in crevices or burrows. They aggressively guard their privacy; a crab entering another’s burrow risks becoming a meal.

But that’s not the end of their antisocial behavior. When coconut crabs emerge to feed, they keep their distance from each other. To maintain their personal space, they’ll announce their presence with ritualized claw waving. Laidre sought to find out if coconut crabs ever gathered together to interact (beyond mating or eating each other). The scientist tethered coconut crabs to one spot and watched to see if any others came to visit. They did not.

9. Coconut crabs carry their developing young under their abdomens.

After coconut crabs mate, females attach their eggs to special appendages and carry them under their abdomens. While the young develop inside the eggs, the females hold onto them, sticking near the edge of the sea so that they can periodically moisten the eggs.

But this care ends when the young are ready to hatch. The females release their hatchlings into the ocean waves. Now the tiny, floating babies must fend for themselves—and only a few will survive to return to land.

10. We need to learn a lot more about coconut crabs.

Coconut crab
Anne Sheppard, Wikimedia Commons // CC BY 3.0

Coconut crabs are little-studied creatures, and we need to know more about them—not just because they’re incredible and have a lot to tell us about biology, but also because we want to keep them around.

They may be huge and heavily armored, but they can be vulnerable. Coconut crabs take an extremely long time to grow big—they can live more than 40 years—and introduced predators such as rats can harm smaller, younger individuals or those in the process of shedding their exoskeletons (when their bodies are soft). Habitat loss has also caused local declines in some areas. The International Union for Conservation of Nature lists the coconut crab as data deficient: That is, we don’t know enough about its locations and populations. That’s why we need to study and learn more about these amazing, otherworldly critters.

‘Water’ in Kansas City Woman’s Ear Turned Out to Be a Venomous Brown Recluse Spider

N-sky/iStock via Getty Images
N-sky/iStock via Getty Images

Susie Torres, a resident of Kansas City, Missouri, woke up on Tuesday morning with the distinct feeling that water was lodged in her left ear. She likened it to the swooshing sensation that can often happen after swimming, WDAF-TV reports.

Instead of waiting for the problem to resolve itself, Torres went to the doctor—a decision that might have saved her from some serious pain. The medical assistant was the first to realize something was alarmingly amiss, and immediately called for backup.

“She ran out and said ‘I’m going to get a couple more people,’” Torres told 41 Action News. “She then said, ‘I think you have an insect in there.’” For many people, the thought of having any live insect stuck in an ear would be enough to cue a small- or large-scale freak-out, but Torres stayed calm.

The doctors “had a few tools and worked their magic and got it out,” Torres said. The “it” in question turned out to be a spider—and not just any harmless house spider (which you shouldn’t kill, by the way). It was a venomous brown recluse spider.

“Gross,” Torres told WDAF-TV. “Why, where, what, and how.”

Miraculously, the spider didn’t bite Torres. If it had, she would’ve ended up visiting the doctor with more than general ear discomfort: Brown recluse bites can cause pain, burning, fever, nausea, and purple or blue discoloration of the surrounding skin, according to Healthline.

Torres may have remained admirably level-headed throughout the ordeal, but that doesn’t mean she’s taking it lightly. “I went and put some cotton balls in my ears last night,” she told WDAF-TV. “I’m shaking off my clothes, and I don’t put my purse on the floor. I’m a little more cautious.”

Is this the first time an insect has posted up in the ear of an unsuspecting, innocent human? Absolutely not—here are six more horror stories, featuring a cockroach, a bed bug, and more.

[h/t WDAF-TV]

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