The 15 Most Fun Evolutionary Adaptations

From buckets for mouths to hammers for heads, these are among the greatest inventions of natural selection.

Oldest Fossilized Skin Discovered, Clocks in at 300 Million Years Old

And you thought you were in need of some moisturizer.

These Bats Seem to Use Their Huge Junk to Have Weird Sex

Researchers have video evidence that serotine bats don't have penetrative sex, like other mammals.

Ancient ‘Lazarus’ Primate Was North America’s Last—Until Humans Arrived, Researchers Say

Primate fossils dating back 30 million years reveal the emergence of a North American mammal lineage that originated in Asia.

Glowing Mammals Are Really Common, Actually

Cats, bats, wombats, and polar bears are among the latest mammals to reveal an ability to fluoresce.

The Future Supercontinent Will Be Way Too Hot for Mammals to Survive, Study Says

There will probably be no more land mammals in 250 million years when landmasses join together again.

New Report Shows Famed Florida Manatee Died After ‘High-Intensity Sexual Behavior’ With Brother

The thing is, this kind of same-sex mating isn’t uncommon among manatees, but the USDA alleged the aquarium failed to protect the manatee named Hugh.

Elephants Need a Little Variety in Their Diet, Too, Poop Study Reveals

Using a relatively new form of genetic analysis, scientists have found that wild elephants will chow down on a rich palette of plants.

To Survive Extreme Heat, Squirrels Go ‘Sploot’

What looks like a cutesy photo op is actually a climate coping strategy for squirrels trying to beat the heat.

A Massive Project Is Helping Scientists Unravel the Genetic Secrets of Mammals

The Zoonomia project is the largest collection of mammalian genomes ever assembled—but, sadly, the raccoon isn't among them.

You’ve Been Thinking of Australian Mammals All Wrong

"Most people, including Australians, don’t know about most mammals in Australia," says Jack Ashby, author of the new book Platypus Matters .

How Mammals Rose From the Doom of the Dinosaurs

A new book, The Rise and Reign of the Mammals by paleontologist Steve Brusatte, explores how our ancestors emerged, evolved, and took over the world.

Fossil Reveals One of the First Saber-Toothed Mammals

The 42-million-year-old predator, with its cat-like appearance and elongated fangs, was a sign of things to come.

Three Extinct Mammals Found in Wyoming Were Part of the Post-Dinosaur Revolution

The animals are condylarths, extinct predecessors to modern-day ungulates like horses and rhinos.

Birds Are Brazenly Stealing Hair Off Animals’ Backs

In dozens of videos, birds were caught stealing hair from dogs, cats, humans, raccoons, and even a porcupine.

Why Aren’t There Mammals in Super Vivid Colors Like There Are Birds and Bugs?

Hundreds of Fossilized Footprints From Ancient, Bear-Sized Mammals Found in Wyoming

These Mole-Like Critters Lived Under the Feet of Dinosaurs

Primates Appeared Almost Immediately After Dinosaurs Went Extinct, New Research Suggests

New study of mammalian evolution reveals one of our earliest ancestors