Also known as a "whistlepig" and a "thickwood badger," groundhogs are now synonymous with shadows and spring weather. But ...

Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges ...

Bugs are scary. But at least we can take solace in the fact that they’re small, right? Well, the goliath stick insect might ...

Many spine-bearing creatures, or vertebrates, have a curious bit of tissue deep in their brains called the pineal gland. It ...

The animals' extended lower jaws were seemingly made for scooping, but research over the past few decades has found they ...

This jaw-dropping shark is pink, nightmarishly ugly and can slingshot its jaw out of its face when it’s hungry ...

Sea creatures abound this week, as scientists make discoveries about scallop eyes and use models to help figure out the age-old mystery, "Which came first, comb jellies or the sea sponge?” We're ...

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are ...

The bumpy-faced waterfowl can be found across the United States, but in almost all cases the birds are domestic versions of the wild ducks. Here's how to know which is which.

When a graduate found a baby Florida scrub millipede, she put it in a kiddie pool. Then it got busy reproducing.

A hunk of romaine was easy pickings for Porkchop and her three flippers. On a rainy day last week, the green sea turtle ...