A seemingly ordinary gardening project in upstate New York turned extraordinary when a local man unearthed a prehistor ...

A few miles off the coast of Florida, an unusual situation occurred. Alex Lundberg, a diver and treasure hunter, stumbled ...

Sloths weren't always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons ...

The mastodon jaw and some other bone fragments were found in late September in a backyard near Scotchtown, New York.

But new discoveries suggest that humans were existing alongside these animals for at least 10,000 years, without making them ...