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 systemic changes ...

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 ...

The Earth’s climate is a dynamic entity, continuously evolving over billions of years with alternating periods of extreme heat and cold. Recent scientific studies indicate that the Earth is subtly ...