Prehistoric times were pretty strange, to put it lightly, and the same could be said of the species from that period. Here ...

The animal kingdom is full of a variety of animals living on land, in water bodies, and the sky. But millions of years ago, massive creatures called Earth their home, yet have since gone extinct.

Here are just a few groups of ancient animals that live on: And, here are the animals that get my vote for “most prehistoric-looking ... and enduring groups of land-dwelling arthropods.

In prehistoric North America, the short-faced bear (Arctodus simus) ruled the land. It was one of the biggest ... there was great excitement over what extinct animal it could have belonged to.

Riley Black’s new book, When the Earth was Green, uses the latest research to envision the ancient worlds of our favorite prehistoric animals.

The very first “whales” were land animals that walked on four legs — small deer-like creatures, about the size of a house cat, that ate plants and waded around in prehistoric lagoons over 50 ...

"Instead of consuming the meat of land-based animals, plants, or even a little salmon, like contemporary brown bears, these bears appear to have lived almost exclusively on seafood." The sea ...