Others can still be found in the wild — and maybe even in your own backyard. Wherever you see them, these ancient animals are sure to inspire wonder. All crocodiles, caimans and alligators are ...

Dire wolves, made famous by “Game of Thrones,” went extinct some 13,000 years ago. Now, researchers have bred gray-wolf pups ...

Relatively little is known about Denisovans, an extinct group of human cousins that interacted with Neanderthals and Homo sapiens.

Rare evidence about the lives of an ancient group of arthropods has ... or even living attached to other animals." One curious quirk of the cyclidans, however, is that they're almost always found on ...

The sperm dates back 100 million years and belongs to an ancient ostracod, a relative of millimeter-long crustaceans still alive today. It’s almost 50 ... The researchers found a tangled clump of ...

Also known as ctenophores and considered one of the most ancient animal lineages, comb jellies possess the unique ability to revert to larval stages after reaching maturity. This was discovered in ...

a bizarre animal from ancient Ediacaran oceans. With no head or limbs, Dickinsonia resembled nothing like today’s animals. Its shape mystified scientists for almost 75 years. Dying more than ...

Rare evidence about the lives of an ancient group ... living attached to other animals." One curious quirk of the cyclidans, however, is that they're almost always found on their own.