via.fox40.com
Mastodon Bones Offer Clues of Earliest Humans in North America
(CNN) -- It's a discovery likely to rewrite the story of southeastern United States. Stone tools and mastodon bones found at the bottom of a Florida river point to humans living in the region 14,550 years ago. That's more than 1,500 years earlier than previously believed, scientists say. "This is a big deal," said Jessi Halligan, one of the study's authors and an assistant professor of anthropology at Florida State University.