Roughly half a million years ago, a group of armadillo-like mammals, horses, and sloths met their end in a sinkhole in what ...

Fossil collectors in Florida have discovered an ancient sinkhole, now at the bottom of a river, which holds the remains of animals rarely seen in the state, including a type of giant armadillo, giant ...

For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through ... with the end of the last Ice Age, a time when an ice-free ...

For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting ... This date happens to coincide with the end of the last Ice ...