Mammals
Scientifically-speaking there are 11 mammal groups, and most Mammals are warm-blooded, have body hair, give live birth and nurse their young with milk from mammary glands. Check out these articles about all kinds of mammals.
Leopard Seals Are Apex Predators of the Antarctic
With Fewer Than 10 Left, Can the Vaquita Be Saved?
Humpback Whales Have Made an Amazing Comeback From Extinction
Baby Bats Babble With Moms, Hinting at Human Language Development
Fruit Bats Are the Best Pollinators (and Suppliers of Tequila)
Brazilian Free-tailed Bats Are Way Faster Than We Thought
Alaska's Kodiak Bear Is One of the Planet's Biggest
What's the Difference Between a Brown Bear and a Black Bear?
How Polar Bears Work
Gray Wolves Will Get Federal Protection Again in Much of U.S.
The Serval Stands Tall and Jumps Like A Champion
Are Dingoes Dangerous (and Did One Really Eat a Baby)?
Dik-dik: The Tiny Antelope With the Embarrassing Name
Are Mules, Burros and Jackasses All Donkeys?
Tapir: The Ancient Fruitarian With the Tiny Trunk
What's It Like Inside a Kangaroo's Pouch?
Do Kangaroos Really Box?
The Smiley Quokka Is an Australian Super Survivor
The Tarsier Is One Weird Primate, and Yes, We're Related
Marmosets Are Tiny, Upper Canopy-dwelling Monkeys
Why Do Gorillas Beat Their Chests?
How Long Do Squirrels Live?
'Splooting': It's What All the Cool Squirrels Are Doing This Summer
Squirrels Get Jacked During Hibernation; No Weights Needed!
The Pink Fairy Armadillo Is as Mystifying as Its Name
The Coatimundi Is Cute But Doesn't Make a Good Pet
Great Escapes! 5 Wild Animals Who Busted Out and Went on the Run
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When threatened, the slow loris licks venom secreted from a gland under its arm. Licked and loaded, the loris is ready to poison an attacker with a bite.
There are over 60 species of langur in the world, all of which eat a plant-based diet and most of which burp a lot.
By Wendy Bowman
These chunky little guys aren't dogs at all. They're actually part of the rodent family, and they're shockingly smart.
By Meg Sparwath
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The name dik-dik comes from the repetitive 'dik' sound the tiny female dik-dik makes when she feels threatened.
Servals have long legs and necks, which allow them to spot prey over the tall grasses of the savanna, but their huge ears give them their best weapon — an acute sense of hearing.
By Mark Mancini
Sperm whales are one of the largest creatures in the ocean. And they have the biggest brain on the planet. So are they also the smartest? We'll tell you.
By Wendy Bowman
Caracals have really cool ears and can also jump 10 feet in the air from a seated position.
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Yes, the obvious fur color seems like a dead giveaway, but you can't always judge a bear by the color of its fur.
By Mark Mancini
Are these strong and dependable animals all the same? If so, why the different names? If not, what makes them different?
These wily canines are probably best known because of the phrase "a dingo ate my baby." But come on. Did a dingo really eat a baby? And do they even attack humans?
By Meg Sparwath
Their mamas may be the only ones who can tell them apart, but there are major differences between these cousins, one being the type of water in which they can survive.
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From the four-headed male reproductive organ to hosting the world's largest flea and sporting a body covered in spiny hairs, this cute little creature takes the cake for mammalian weirdness.
By Wendy Bowman
The protection of these strange looking, ancient animals, and creatures like them, may be a key component in helping a planet in climate catastrophe.
Pikas are little mammals that, though they may look like rodents, are more closely related to rabbits.
This kitten-looking wild cat is known as the 'hummingbird of the cat family' and could almost fit in the palm of your hand, but its diminutive size belies a ferocious personality.
By Wendy Bowman
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Aardwolves aren't closely related to either aardvarks or wolves, but these little hyenas resemble both in some ways.
The stoat and the weasel might look alike, but they're not the same animal. The stoat is a serious predator that kills its prey like a vampire!
By Wendy Bowman
Lemmings don't commit mass suicide as is popularly believed, but they are aggressive and have even been known to charge larger predators.
Technically they're called tanuki, but these furry critters might as well be called raccoon dogs because that's what they look like. So are they just as domesticated and loving as the canines we know?
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Spider monkeys, an endangered species, are the largest monkeys in the Americas and live in the forest canopy, where they swing through the trees with the greatest of ease.
It's an age-old question. How much wood would a woodchuck chuck? Turns out, none at all. So what would a woodchuck chuck if it couldn't chuck wood?
By Katie Carman
The okapi may look like a zebra-horse combo, but its closest relative is the giraffe. Here are nine fascinating facts about this curious creature.
By Wendy Bowman
The anteater has one of the strangest-looking noses in the animal kingdom, a truly fabulous hairdo and a tongue that reaches places never meant to see the light of day.
By Wendy Bowman
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While yaks share the bovine family tree with cows, they're a different species altogether. And, unlike cow dung, yak poop doesn't stink.
By Katie Carman
Wondering what's going on in the animal world while you're all cooped up under quarantine? Check out these webcams and get a virtual glimpse into how the animals live.