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.

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Hedgehogs: Adorable, But Not Good Pets

Sure, hedgehogs are cute as heck, but do you think one really wants to live in your house?

The Great Squirrel Debate: To Feed or Not to Feed?

There doesn't seem to be much of a gray area. Most people are a hard yes or yard no.

Opossums: So Darn Ugly They're Adorable

Sure, opossums eat out of your trashcan, but they're also strange little superheroes.

Why Is Cashmere So Expensive?

Your favorite cashmere sweater is super-soft and luxurious. It probably cost you an arm and leg, too. Here's why.

Golden Snub-nosed Monkeys Share Nursing of Young

A group of researchers in Shennongjia National Nature Reserve discovered that these female monkeys are essentially happy to feed each other's offspring.

Flying Squirrels Glow Hot Pink in UV Light

Perhaps it's a mating signal. Or meant to confuse owls and other predators. Or maybe it's just for looks.

Elephants Have a Special Alarm Sound: 'Humans! Run!'

Elephants make a specific sound to warn each other of nearby humans.

Bears Adjust to Repeated Drone Exposure, Study Finds

This could mean good news for conservation and anti-poaching efforts if other species follow suit.

Dolphins Sleep Half a Brain at a Time

A dolphin doesn't breathe automatically, so during sleep, one side of its brain stays awake to ensure the mammal rises to the surface and breathes.

Why Penguin Feet Don't Freeze

Penguins stand for months on the coldest ice in the world without their feet freezing, thanks to special blood circulation.

Why Do Monk Seals Get Eels Up Their Noses?

It looks excruciating, and nobody knows exactly why it happens.

Battle of the Best Sonar: 'Team Dolphin' vs. 'Team Bat'

Before you declare which team you're on, we've got the breakdown on this auditory battle royal.

5 Cool Cats in the Wild

When we think of big cats in the wild, we most likely think of lions and tigers. But there are so many more amazing wild cats you've probably never even heard of. Here are five.

Humpback Whales Start Simpler Songs as Old Ones Get Too Complex

Do humpback whales get tired of singing the same old song, or do they simply start over when it gets too complicated?

Wolves' Return to Yellowstone a Boon for Streams

A first-of-its-kind study reaffirms why wolves are vital to the health of our ecosystem.

Buffalo Roundup Evokes Images of the Wild West

The annual bison roundup in South Dakota's Custer State Park is a spectacle full of cowboys, horses and of course wild buffalo, all set against the backdrop of the rolling Black Hills. It's also about as Americana as you can get.

Scientists Figure Out Why Elephants' Skin Is So Cracked

Scientists have known for a long time that elephants have no sweat glands and keep cool through slinging mud on their skin. But they didn't know what made the skin so wrinkled — until now.

Contrary to Popular Opinion, Cats Are No Good at Catching Rats

The old saw about cats being good catchers of rats was finally put to scientific study — and the results were pretty sad.

Baby Giraffes Get Their Spots From Mom

A new study found that those spot patterns are not only inherited from mom, they help camouflage baby giraffes in the wild.

PCBs Are Killing Killer Whales

A new study paints a grave future for the killer whale, all because of the now-banned chemicals polychlopinated biphenyls — PCBs.

What a Tangled Web a Few Squirrels' Tails Can Weave

It's a natural phenomenon known as a 'squirrel king.' But what's the deal and why do squirrels get tangled up?

How Billie the Dolphin Taught Her Flippered Friends to Bust a Move

A dolphin named Billie learned a dolphin-show trick from some captive dolphins, taught her wild friends how to do it and started a fad.

Don't Hate This Squirrel Because He's Beautiful

The Indian giant squirrel is covered in flamboyant colors like orange, black and bright purple. But why?

Goats Really Like it When You Smile at Them

Domesticated animals like dogs and horses are known to respond to human facial expressions, but a new study finds that goats also like it when we smile.

Zombie Gene Protects Elephants From Cancer

A strange evolutionary plot twist has been uncovered in the search for why elephants rarely get cancer.


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