13 Furry Facts About Bobcats

iStock
iStock

Graceful and stealthy, this North American cat is an extraordinary hunter and can thrive in regions from Canada to Mexico. And yes, their offspring are called bobkittens.

1. BOBCATS ARE SO NAMED BECAUSE OF THEIR TAILS.

Bobcat surrounded by grass
iStock

Though many felines have long, sinuous tails, an adult bobcat's averages just 6 to 7 inches in length; the word bobcat is a reference to this stubby appendage. (In barbershop lingo, hair that's been cut short is sometimes called "bobbed.") Other names that these animals go by include bobtailed cats and wildcats—but neither of these names are generally accepted because there's a breed of domestic cat called a bobtail cat, and wildcat is now generally restricted to members of Felis silvestris, an unrelated species.

2. BOBCATS AND CANADIAN LYNX ARE EASY TO TELL APART …

Bobcat smiling at the camera
iStock

While bobcats are actually a type of lynx (another accepted name for them is the bay lynx—more on that in a minute), in North America, the term is more generally associated with the Canadian lynx. On the surface, these two species look very much alike. Both, after all, are similarly proportioned, mid-sized cats with stumpy tails and pointed ears. Still, some noticeable differences do exist between them.

First, the Canadian lynx is slightly bigger with longer limbs and larger feet. Another key dissimilarity lies in the fur: Bobcats have short, reddish-brown coats with well-defined spots while lynx are shaggy, gray, and have faded spots. If you were to compare their hindquarters, you'd notice that a bobcat has black bands on its tail, whereas a lynx's tail only displays a solid, black tip. Also, lynx ears have longer tufts.

But where these felines truly deviate from each other is in their lifestyle preferences. The lynx is a cold-weather cat that lives further north and at higher elevations. Their enlarged paws act like snowshoes, enabling these hunters to pursue such game as snowshoe hares with relative ease. Bobcats, in contrast, are built for warmer environments. Also, while lynx mainly eat hares, bobcats have a more varied diet and will readily hunt birds, small mammals, reptiles, and deer. Here's another noteworthy tidbit: Bobcats tend to be much more aggressive—in fact, some zoo keepers call them the "spitfires of the animal kingdom."

3. … BUT THEY CAN HYBRIDIZE.

I couldn't find a stock photo of a bobcat-lynx hybrid, so this is just a bobcat again. It's sitting on a mound of grass surrounded by some trees.
iStock

The Canadian lynx is found throughout its namesake nation and Alaska (as well as Colorado). Versatile bobcats live from Winnipeg to central Mexico. Occasionally, the felines will cross paths near the border between Canada and the lower 48 states. Sometimes these encounters are violent, but they can also be amorous: Since bobcats and lynx belong to the same genus (which, confusingly, is named Lynx), the two species are very similar at the genetic level. Over the past 15 years, a handful of confirmed hybrids have turned up in the northern U.S. The mix-matched predators tend to display a bobcat's general build and the pointier ears of a lynx. In keeping with the tradition of giving delightful portmanteaux names to hybrid animals, these critters are now known as blynx.

4. BOBCATS TEND TO HUNT AT DAWN AND DUSK.

Close-up of a bobcat face surrounded by a dark background
iStock

Wild bobcats do the majority of their hunting in low-light conditions. The animals usually wake up three hours before sunset and then go back to sleep around midnight; they wake up again roughly an hour before dawn. In the early morning, the felines return to their slumber and the whole cycle repeats itself. (According to one study, they do adjust their schedules based on the lunar cycle.)

Bobcats are at their most active during the twilight hours, when potential targets like eastern cottontail rabbits tend to forage [PDF]. In the wintertime, though, food gets scarcer, which prompts some of the cats to change their schedules: Throughout the colder months, bobcats in northern states will often adjust their sleep regimen so that they can spend more time tracking down prey in broad daylight.

5. ADULTS CAN BRING DOWN ANIMALS THAT WEIGH SEVERAL TIMES MORE THAN THEY DO.

Bobcat standing on a rock and looking off to one side
iStock

Fully-grown bobcats can weigh up to 33 pounds. For the most part, they eat rabbits, birds, rodents, and other fairly small creatures. However, the cats are also extremely adept at killing adult white-tailed deer. Although they generally hunt fawns, they have been known to kill adults, which can weigh 250 pounds or more. To slay such a large herbivore, a bobcat will jump onto its back and bite through the throat.

6. BOBCATS HAVE BEEN SUCCESSFULLY REINTRODUCED TO NEW JERSEY.

Really adorable picture of a bobcat kitten interacting with a skunk
iStock

Decades of overhunting and deforestation meant that bobcats had been more or less eradicated from New Jersey by the early 1970s. In response, the state's Division of Fish and Wildlife began to import newly-captured specimens from Maine. Between 1978 and 1982, 24 of these New England bobcats were released into the northern part of the Garden State [PDF]. It would appear that this effort paid off: Since 1990, the local bobcat population has steadily grown, although the animals are mainly restricted to a few counties in north Jersey and the famous pinelands.

7. ONE BOBCAT WILL OFTEN GUARD SEVERAL DIFFERENT DENS.

Bobcat peeking out from a shelter of rocks covered in snow
iStock

Solitary hunters by nature, bobcats lay claim to an area of land that can be anywhere from 1 to 18 square miles in size (they tend to be smaller in summer and larger in winter). An individual bobcat will usually mark its territory by scratching up or excreting upon some strategically located trees. Of the two sexes, females behave more aggressively toward intruders—especially other females.

On its home turf, the typical bobcat will stake out at least two or three different shelters. The most frequently used is the "natal" den, which is often a cave or rocky, cave-like opening that the cats fill with dead plants for bedding. Additional abodes are known as "auxiliary" dens. Spread throughout the territory, these can take the form of anything from bushes to hollow logs. For females, the extra shelters are especially helpful. Mother bobcats move their kittens from one den to the next on a regular basis, which helps throw predators off the little ones' scent.

8. BOBCATS ARE EXCELLENT CLIMBERS.

Bobcat perched on a tree branch
iStock

When threatened by a bigger carnivore, these cats will usually head for the safety of the nearest tree. Climbing amongst the branches also affords bobcats the opportunity to dine on nesting birds every so often. The felines have also been known to pounce onto unwary deer from overhanging tree limbs.

9. THEY LIKE TO COVER UP THEIR KILLS.

Bobcat sitting on a log
iStock

Bobcats can't always consume their victims in one sitting. Sometimes, the carnivores use dirt, snow, leaves, or grass to bury the uneaten pieces of especially large corpses, and will return periodically to dig up their leftovers. This behavior is known as "caching," and it's also practiced by the North American mountain lion. Unfortunately, burying a corpse won't guarantee that it won't be discovered or nibbled on by other carnivores. Ravens, coyotes, bears, and those aforementioned mountain lions won't hesitate to raid a bobcat's subterranean stash if the opportunity arises.

10. AROUND SOME CITIES, THEY'RE BECOMING A COMMON SIGHT.

Bobcat sitting on a brick wall
iStock

"We've got cats sleeping under roadways [and] hunting on golf courses," biologist Julie Golla said in a video for the Texas Parks and Wildlife service. Over the past several years, she's been collecting data on bobcats—specifically, those that now reside in the Dallas-Fort Worth metropolitan area. Here, their population has been steadily rising, particularly in suburban neighborhoods. Far away from Texas, bobcats have also established themselves along the outskirts of Denver and Los Angeles. Interestingly, it looks like this urban lifestyle is turning the cats into night owls. Research conducted in the Los Angeles area shows that local bobcats are more fully nocturnal than their rural counterparts. This makes the big city felines less likely to encounter humans. Furthermore, L.A.'s bobcats deliberately avoid high-traffic footpaths in municipal parks.

11. SOME ANCIENT PEOPLE MIGHT HAVE KEPT BOBCATS AS PETS.

Adorable photo of three bobcat kittens hanging from an oddly shaped log
iStock

Back in the 1980s, the remains of a very young bobcat—which were originally misclassified as a puppy—were discovered beneath a 2000-year-old man-made grave in western Illinois. The plot in question was part of a much larger burial site created by a village aligned with the Hopewell Culture, a widespread group of related peoples who generally lived in small, isolated farming villages. Traditionally, when someone in a Hopewell community died, the deceased was laid to rest in a burial mound. While dog burials are known, they were in the villages, not the mounds. According to Hopewell expert Kenneth Farnsworth, "somebody important must have convinced other members of the society [to bury the cat in a mound]. I'd give anything to know why." Scattered around its body were the beads of a necklace, which might have been used as a collar in life. Given these clues, some experts speculate that the animal was once a beloved pet.

12. THEIR ANCESTORS MIGRATED FROM EURASIA TO NORTH AMERICA.

Close up image of a bobcat's face
iStock

The earliest known member of the Lynx genus evolved in Africa around 4 million years ago. Known to paleontologists as the Issiore lynx, this creature had a more housecat-like appearance than its modern relatives do, courtesy of the now-extinct cat's shorter limbs and proportionally bigger skull. Over time, the Issiore lynx spread northwards into Eurasia. From there, it crossed the Bering Strait and entered North America. Today's bobcats are descended from these Old World colonizers.

13. INVASIVE PYTHONS ARE A MAJOR THREAT TO FLORIDA'S BOBCATS.

Image of a scaly green python
iStock

Being a hunter doesn't guarantee that you, in turn, will never be hunted. Owls, foxes, and coyotes regularly make off with bobcat kittens. Cannibalism is another big problem for these helpless infants, which are sometimes gobbled up by wandering adults (usually males) who belong to their own species. Fully-grown bobcats don't have many natural predators, although mountain lions have been known to kill those that encroach on their territory.

But in recent years, the short list of carnivores that eat bobcats has grown one entry longer. Since 2000, a Burmese python epidemic has been constricting the Florida Everglades. For decades, exotic pet owners have released a steady stream of these Asian snakes into the region, where they now thrive. Capable of weighing 200 pounds, the pythons are large enough to consume dogs, deer, and even alligators. Perhaps unsurprisingly, at least one euthanized specimen has been found with a bobcat corpse in its stomach [PDF].

Pythons are also devouring the animals that bobcats depend upon for survival, including rabbits, raccoons, and rodents. Not coincidentally, the number of bobcat sightings in the Everglades fell by 87.5 percent between 2003 and 2011.

This story originally ran in 2016.

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]

SECTIONS

arrow
LIVE SMARTER