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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Your Bed Has More Poop Than a Chimp's

Think your bed is cleaner than a chimp's? Researchers at North Carolina State University set out to find the answer.

Deadly Chlamydia Threatens Koalas Down Under

Koala populations in Australia are in decline, in part due to the ravages of chlamydia, a sexually transmitted bacterial infection.

A Smart Lemur Is a Popular Lemur

It pays to be brainy when you're a ring-tailed lemur.

Platypus Milk: Our Best Hope Against an Antibiotic-Resistant Future

The platypus may look a bit absurd and bizarre, but its milk might hold the secret to fighting antibiotic-resistant bacteria.

Nutria: River Rats Only a Mother Could Love

Nutria are jumbo-sized rodents that reproduce and eat at a jumbo-sized pace.

Will a Coyote Kill My Dog or Cat?

Urban coyotes have a fierce and formidable reputation as midnight predators, but coexistence with humans is possible.

For Naked Mole Rats, Age Doesn't Increase the Risk of Death

Naked mole rats are famous for their longevity, but they also don't age like the rest of us do.

5 Chimps Who Grew Up in Human Families

Some people mistakenly believe that if chimps are socialized from an early age, they're not a threat to humans. But these five families found out the hard way that chimps will always be chimps.

Squirrels Are Hardwired to 'Dance' When a Car's Coming

Why do squirrels exhibit behavior that can get them killed by cars? And how can you avoid them?

New Coconut-eating, Tree-dwelling Giant Rat Species Discovered

The first new rat species found in the Solomon Islands in 80 years has been uncovered. But due to deforestation of its habitat, very few may still exist.

Squirrels Actually Organize Their Nut Hoard — Here's Why

A new study, along with previous research, suggests squirrels use mnemonic strategies to remember where they put the good nuts.

New Research Helps Confirm Why Horses Have Single-toed Hooves

Today, horses have one huge toe on each leg — but they weren't always that way. Why the single digit now?

Hedgehog Balloon Syndrome Sounds Adorable, Can Be Deadly

Due to a quirk in their anatomy, injured hedgehogs can experience skin inflating to the size of a basketball, which can be a painful and life-threatening development.

Pablo Escobar's Escaped Hippos Now Roam Wild in Colombia Rivers

Thanks to the excesses of narcoterrorist Pablo Escobar, Colombian waterways now house a population of these invasive African giants.

5 Mammals That Are Adorable … and Toxic

Sure, these mammals may be cute and cuddly. But that doesn't mean their bite can't pack a punch.

Fear of the Human 'Superpredator' Causes Large Carnivores to Eat Less

By frightening top predators, the fear of humans may be distorting ecosystem processes even more than previously imagined.

That Funky Meerkat Scent Comes From a Surprising Source

A new scientific study reveals that the smells unique to meerkat communities aren't produced by the meerkats themselves.

Genetic Analysis Shakes Up Elephant Family Tree, Raising Conservation Issues

A new genetic analysis clarifies the evolutionary relationships between five modern and extinct elephant species.

Rats Are Little Geniuses

Despite our best efforts at eradicating them, rats keep outsmarting us. Here's how.

Orangutans Can Nurse for 20 Percent of Their Lives

We've learned that young orangutans nurse for much longer than any other mammal, knowledge which could help conservation efforts.

Narwhals Caught on Video Using Their Tusks to Hunt

It's the first evidence researchers have of the whales using their "unicorn horns" to capture prey.

Aromatherapy Shows Promise for Stressed Horses

Humans may not be the only animals that dig a soothing whiff of lavender oil.

Naked Mole Rats Survive Without Oxygen by Turning Into Plants

Deprived of oxygen, naked mole rats can alter their metabolic functions to something less mammalian and more plantlike, burning fructose instead of glucose.

These Arctic Squirrels Repeat Puberty Every Year of Their Lives

It's like the movie "Groundhog Day" every April, but with hibernation, a smaller rodent and way more hormones.

Wildlife Bridges Around the World Are Helping Deer and Crabs Cross Roads Safely

Officials are building bridges and underpasses to help animals safely cross busy roadways, which keeps the motorists and crossing creatures out of harm's way.


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