New discoveries could rewrite the history of early Americans — and the 4-ton sloths they lived with
Complete jaw of mastodon found in backyard of Orange County home Complete jaw of mastodon found in backyard of Orange County home 01:23 Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge – up to 4 tons – and when startled, they brandished immense claws. For a long time, scientists believed the
Read More