For nearly 30 million years, a 2,000-pound beast known as the entelodont ruled a sweeping empire from Mongolia to what is now ...

Two underwater sea lilies were eaten and regurgitated around 66 million years ago. They were preserved as fossilized vomit.

Scientists identified the tiny species of cat from a fossilized jawbone, which could date back as far as 300,000 years ago.

With serpentine necks, flippers and a mouth full of needle-sharp teeth, plesiosaurs have captured imaginations since ...

CELINA - Though dinosaurs are the most notable of the prehistoric animals, smaller mammals and fish walked and swam in Ohio, ...

Trilobites, like this perfectly preserved specimen at South ... proved among the most successful and enduring of all prehistoric animals. More than 17,000 species are known to have survived ...

As permafrost melts, affected by climate change, more and more parts of prehistoric animals are being discovered. Yana will be studied by scientists at Russia's North-Eastern Federal University ...

DNA analysis confirmed the animal was related to wolves ... The remarkably well-preserved remains of a 50,000-year-old baby mammoth, named Yana, were discovered in Siberia's Batagaika crater.