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.
Why Are Orcas Attacking Boats? Experts Weigh In
Leopard Seals Are Apex Predators of the Antarctic
Humpback Whales Have Made an Amazing Comeback From Extinction
The Largest Bat in the World Has a Wingspan Over 5 Feet
Baby Bats Babble With Moms, Hinting at Human Language Development
Fruit Bats Are the Best Pollinators (and Suppliers of Tequila)
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)?
Bison vs. Buffalo: What's the Difference?
Lamb vs. Sheep: Do You Know the Difference?
Dik-dik: The Tiny Antelope With the Embarrassing Name
The Happiest Animal on Earth Is the Quokka
What Do Possums Eat? Most Things, It Turns Out
What's It Like Inside a Kangaroo's Pouch?
The Tarsier Is One Weird Primate, and Yes, We're Related
Marmosets Are Tiny, Upper Canopy-dwelling Monkeys
Why Do Gorillas Beat Their Chests?
Squirrels Can Be Left- or Right-handed
Rat vs. Mouse Identification: Which Is Eating Your Cheese?
Chipmunk vs. Squirrel Sizes, Habitats and Characteristics
What Is the Biggest Cat in the World? Top 9 Species in the Wild
Cheetah vs. Leopard: Can You Spot the Differences?
Bunny vs. Rabbit: Is There a Difference?
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A new scientific study reveals that the smells unique to meerkat communities aren't produced by the meerkats themselves.
By Chris Opfer
A new genetic analysis clarifies the evolutionary relationships between five modern and extinct elephant species.
Despite our best efforts at eradicating them, rats keep outsmarting us. Here's how.
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We've learned that young orangutans nurse for much longer than any other mammal, knowledge which could help conservation efforts.
It's the first evidence researchers have of the whales using their "unicorn horns" to capture prey.
Deprived of oxygen, naked mole rats can alter their metabolic functions to something less mammalian and more plantlike, burning fructose instead of glucose.
It's like the movie "Groundhog Day" every April, but with hibernation, a smaller rodent and way more hormones.
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Rhino herds defecate in giant, shared dung piles called midden, then they stick their noses in the stuff. Here's why.
The feral pig population in the U.S. is a growing issue in nearly 40 states. The USDA hopes to wipe out the billion-dollar problem within a decade.
House cats seem to love chasing laser pointers. But what about their larger, wilder cousins?
If you look outside your window right now, you'll probably see one running up a tree or checking you out. How did the squirrel get so commonplace?
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Ring-tailed lemurs — perhaps the most iconic species on the tropical island of Madagascar — are in significant decline due to habitat loss, hunting and illegal capture.
Zookeepers in Europe feed their elephants surplus holiday foliage, giving the animals a treat they both eat and play with.
Turns out the reboot of 'Planet of the Apes' got one thing right — it's the brains monkeys lack, not the anatomy.
It turns out that one of the world's most enchanting animals has even stronger superpowers than we previously knew. Surprise!
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Yes, these nocturnal mammals can fly faster than our most beloved speedy birds. And they beat the record by a long shot.
In research that showed intentional expressions of desire, horses have been added to the short list of animals that can use symbols to communicate with humans.
The most popular lady macaques show us why nitpicking pays off.
Can you tell one species of giraffe from the next? We've got some pics to help you out.
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Thanks to the work of conservationists, these rare California island foxes have been removed from endangered species list and marked totally recovered.
The cuddly cubs were born in the same zoo that experienced disastrous flooding in 2015.
For some horses and ponies, Diet Coke can be a literal lifesaver.
Hedgehog populations in Britain have dropped severely. Understanding how the animals have adapted to urban and rural spaces will help us help them.
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Dutch researchers analyzed a surprising selection of exotic mammals to find which could most easily live alongside people in a humane way.
Talk about filthy lucre! Trace amounts of the precious metal turned up when scientists looked into bovine bathroom business.