Footprints and drag marks from early humans using travois are discovered at White Sands, NM, dating back 22,000 years.

Huge tunnels under southern Brazil and northern Argentina were potentially made by giant, Ice Age sloths for refuge and rest ...

“It’s a mural depicting what life was like in the Ice Ages in Manitoba,” Moysiuk said. “A lot of the fossil evidence that went into creating this mural was found close to Grunthal, so it’s kind of a ...

Sloths weren't always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws. Video above: ...

“Prehistoric Planet: Ice Age” is the greatest doc I’ve seen since the BBC’s sensational “Blue Planet 2,” which first hit ...