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

Prehistoric animals roamed all over the Earth. One of the best examples is the fascinating animals found at the La Brea Tar ...

here are the animals that get my vote for “most prehistoric-looking.” They may not be the oldest animals on Earth, but they aren’t recent creations either. Most of all, when you look at them ...