Add Yahoo as a preferred source to see more of our stories on Google. Here are the wildest extinct prehistoric creatures that aren't dinosaurs. It's hard to imagine how some of these animals even ...

Modern elephants are impressive, but their extinct relatives were far stranger. This documentary explores prehistoric proboscideans like Deinotherium, Platybelodon, and massive mastodons that once ...

Modern human beings are the ultimate apex species, exerting dominance over our environment in a way that no other animal ever has. However, the other members of our species' lineage weren't nearly as ...

In the Triassic, the modern animals we know were just beginning to diversify into a menagerie of forms and body plans that ...