An Ice Age giant was tumbling around North America during the Late Pleistocene. About the size of a bear, it was actually a kind of enormous sloth that had evolved to thrive in freezing conditions.

Koalas with the bodies of lions. Elephants the size of your dog. Gigantic, 8-foot-tall sloths. These aren’t creatures found in science fiction: They walked our planet a million years ago, during the ...

NEW YORK (AP) — If you’ve seen any of the “Ice Age” animated Disney movies, we have some bad news: You don’t know the real ice age. It was an incredible time when the Earth was going through immense ...