Researchers uncovered one vertebra, and based on its size, they estimate the massive creature was at least 30 feet long when ...

The Megatherium roamed South America for 5.3 million years before it went extinct — though some Indigenous people claim to ...

This giant anteater might have some cat DNA in its ancestral bloodline. Watch him "play" with a coveted empty cardboard box.

A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously ...