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12 Odd Facts and Stories About Armadillos

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Armadillos are small New World mammals often called speed bumps for their habit of crossing roads too slowly, and they carry their own suits of armor around with them. And that's just the beginning of what makes these animals really, really interesting.

1. The name armadillo came from the Spanish terms meaning “little armored one.” They eat grubs and insects, small reptiles, worms, and sometimes plants. They have a keen sense of smell but poor eyesight, which is common among animals that dig in the dirt.

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2. You can eat armadillo, called “possum on the half-shell,” or, during the Great Depression, “Hoover hogs.” They are said to taste somewhat like pork. Find some recipes for armadillo meat at Eat the Weeds. 

Armadillo Species

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3. The giant armadillo (Priodontes maximus) is the biggest species of armadillo, growing up to 39 inches long.

Cliff via Flickr // CC BY-SA 2.0

4. The pink fairy armadillo (Chlamyphorus truncatus) is the smallest of the 20 or so armadillo species, growing to only about six inches long! It is found in central Argentina. These tiny ‘dillos have pink armor and feet, and fluffy white fur. By the way, most armadillos can grow hair, particularly on their undersides, but most have sparse, spiky hair. 

Sandstein via Wikimedia Commons // CC BY 3.0

5. The screaming hairy armadillo (Chaetophractus vellerosus) can be found in Paraguay, Argentina, and Bolivia. As its name might suggest, the animal has long hair growing out from between its armor scales and screams loudly when threatened.

Sandstein via Wikimedia Commons // CC BY 3.0

6. The Brazilian three-banded armadillo (Tolypeutes tricinctus) and the southern three-banded armadillo (Tolypeutes matacus) are the only armadillo species that can roll themselves up in a ball. Both are found in South America. It had to have been one of these species that inspired Rudyard Kipling's Just So story "The Beginning of the Armadillos,” in which Kipling wrote that armadillos were created when a turtle and a hedgehog taught each other how to defend themselves by growing armor and rolling up in a ball.

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7. The three-banded armadillo was the mascot of the 2014 World Cup tournament in Brazil. Because it curls up in a ball, see?

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8. The nine-banded armadillo (Dasypus novemcinctus) is the only species common in the U.S. It ranges throughout the American South, from Texas to the Atlantic and as far north as Nebraska. It is also common in Mexico. Though their name would suggest otherwise, nine-banded armadillos can have anywhere from seven to 11 bands in their armor.

NASA/Ken Thornsley via Wikimedia Commons // Public Domain

9. Nine-banded armadillos always give birth to identical quadruplets. That’s a litter of four developed from a single fertilized egg.  

Armadillos in the News

10. The armor that an armadillo carries around is tough and then some. In April of this year, Larry McElroy fired a 9mm pistol at an armadillo in his yard in Georgia. The bullet ricocheted off the animal’s armor and into a mobile home belonging to his mother-in-law, 100 yards away. The bullet went into the back of the recliner McElroy’s mother-in-law was sitting in. She was taken to a hospital with minor injuries; the armadillo did not survive the encounter. Then, in July, a man in Cass County, Texas, attempted to shoot an armadillo and ended up shooting himself in the head when the bullet ricocheted back at him. Or at least, those were the stories both shooters told the police.

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11. Armadillos are the only animals besides humans that are affected by Hansen’s disease, also known as leprosy. Nine people in Florida have tested positive for leprosy this year; all report encounters with armadillos. However, it’s not a situation that should cause panic. There are normally 150 to 200 cases in the U.S. every year, and Hansen’s disease is quite treatable if caught early. There are also millions of armadillo encounters, but since 95 percent of people are already immune to leprosy, the odds of catching it from an armadillo are small.

12. Armadillos may be brave and determined, but they aren’t known for their intelligence.

This critter in Jackson, Mississippi, recently found himself in a deep, underfilled water fountain outside City Hall. The videographer was rather far away, so the camera doesn’t stay steady. He manages to get out, but can he stay out?

NOAA, Wikimedia Commons // Public Domain
Watch the First-Ever Footage of a Baby Dumbo Octopus
NOAA, Wikimedia Commons // Public Domain
NOAA, Wikimedia Commons // Public Domain

Dumbo octopuses are named for the elephant-ear-like fins they use to navigate the deep sea, but until recently, when and how they developed those floppy appendages were a mystery. Now, for the first time, researchers have caught a newborn Dumbo octopus on tape. As reported in the journal Current Biology, they discovered that the creatures are equipped with the fins from the moment they hatch.

Study co-author Tim Shank, a researcher at the Woods Hole Oceanographic Institution in Massachusetts, spotted the octopus in 2005. During a research expedition in the North Atlantic, one of the remotely operated vehicles he was working with collected several coral branches with something strange attached to them. It looked like a bunch of sandy-colored golf balls at first, but then he realized it was an egg sac.

He and his fellow researchers eventually classified the hatchling that emerged as a member of the genus Grimpoteuthis. In other words, it was a Dumbo octopus, though they couldn't determine the exact species. But you wouldn't need a biology degree to spot its resemblance to Disney's famous elephant, as you can see in the video below.

The octopus hatched with a set of functional fins that allowed it to swim around and hunt right away, and an MRI scan revealed fully-developed internal organs and a complex nervous system. As the researchers wrote in their study, Dumbo octopuses enter the world as "competent juveniles" ready to jump straight into adult life.

Grimpoteuthis spends its life in the deep ocean, which makes it difficult to study. Scientists hope the newly-reported findings will make it easier to identify Grimpoteuthis eggs and hatchlings for future research.

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10 Things You Might Not Know About Grizzly Bears
Joe Raedle, Getty Images
Joe Raedle, Getty Images

Ursus arctos horribilis is better known by the more casual term of grizzly bear. These massive, brown-haired predators have a reputation as one of nature’s most formidable killing machines. Standing up to 8 feet tall and weighing 800 pounds, these fierce mammals have captivated—and frightened—humans for centuries. Keep your distance and read up on these facts about their love for munching moths, eating smaller bears, and being polar-curious.


Grizzlies—more accurately, North American brown bears—are strong enough to make a meal out of whatever they like, including moose, elk, and bison. Despite their reputation for having carnivorous appetites, their diet also consists of nuts, berries, fruits, and leaves. They’ll even eat mice. The gluttony doesn’t kick in until they begin to exhibit hyperphagia, preparing for winter hibernation by chomping down enough food to gain up to three pounds a day.


A grizzly bear eats fruit in Madrid, Spain
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More than 700 grizzlies live in or near Yellowstone National Park, which forces officials to constantly monitor how park visitors and the bears can peacefully co-exist. Because bears rummaging in food containers can lead to unwanted encounters, the park’s Grizzly & Wolf Discovery Center tests trash cans and coolers to see if they’re bear-resistant. (Nothing is truly bear-proof.) Often, a bear will use “CPR,” or jumping on a canister with its front legs, in order to make the lid pop off. Containers that can last at least 60 minutes before being opened can be advertised by their manufacturers as being appropriate for bear-inhabited environments.


It's a myth that grizzlies can't climb trees. Though their weight and long claws make climbing difficult [PDF], and they need support from evenly-spaced branches, grizzlies can travel vertically if they choose to.


Two grizzly bears play in a pool at a zoo in France
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In addition to being omnivorous, grizzlies can also be classified as cannibals. They’ve been spotted eating the carcasses of black bears in Canada. Calling it a “bear-eat-bear world,” officials at Banff National Park in Alberta said the grizzlies are “opportunistic” and more than willing to devour black bears—sometimes just one-fifth their size—if the occasion calls for it. And it’s not just black bears: One study on bear eating habits published in 2017 recorded a 10-year-old male eating a 6-year-old female brown bear.


Although grizzlies enjoy eating many insects, moths are at the top of the menu. Researchers have observed that bears are willing to climb to alpine heights at Montana’s Glacier National Park in order to feast on the flying appetizers. Grizzlies will turn over rocks and spend up to 14 hours in a day devouring in excess of 40,000 moths.


A grizzly bear appears at the Wild Animal Sanctuary in Keenseburg, Colorado
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In what would be considered an ill-advised decision, explorer Zebulon Pike decided to gift his friend President Thomas Jefferson with two grizzly cubs in 1807. Jefferson reluctantly accepted them and kept them in a cage near the north entrance to the White House, and later re-gifted the cubs to museum operator Charles Willson Peale. Sadly, one of them got shot after getting too aggressive with Peale’s family.


The bears we see in fiction or lazing about in the wild tend to look cumbersome and slow, as most anything weighing nearly a half-ton would. But in a land race, even Olympic champions would be on the losing end. Grizzlies can reportedly run 35 mph, and sustain speeds of up to 28 mph for two miles, faster than Usain Bolt’s 27.78 miles per hour stride (which he can only sustain for a few seconds).


A grizzly bear is shown swimming at a pool in an Illinois zoo
Scott Olson, Getty Images

In parts of Alaska and Canada where grizzlies and polar bears converge, there are sometimes rare sightings of what observers call “grolar bears” or “pizzlies.” With large heads and light-colored fur, they’re a hybrid superbear birthed from some interspecies mating. Typically, it’s male grizzlies who roam into those territories, finding female polar bears to cozy up with. Researchers believe climate change is one reason the two are getting together.


When it comes to intellect, grizzlies may not get all the same publicity that birds and whales do, but they’re still pretty clever. The bears can remember hotspots for food even if it’s been 10 years since they last visited the area; some have been observed covering tracks or obscuring themselves with rocks and trees to avoid detection by hunters.


A grizzly bear and her cub walk in Yellowstone National Park
Karen Bleier, AFP/Getty Images

For 42 years, grizzlies at Yellowstone occupied the endangered species list. That ended in 2017, when the U.S. Fish and Wildlife Service declared that a rise in numbers—from 150 in the 1970s to more than 700 today—meant that conservation efforts had been successful. But overall, the grizzly population is still struggling: Fewer than 2000 remain in the lower 48 states, down from 50,000 two centuries ago.


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