Prehistoric sloths were massive creatures with large claws, suggesting early humans in the Americas might have coexisted with them for millennia. New findings from Brazil's Santa Elina site imply ...

Giant sloths once roamed across much of the Americas. Modern humans often picture sloths as slow animals clinging to tree branches, but their prehistoric relatives weighed more than 8,000 pounds and ...

SAO PAULO (AP) — 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. For ...

Paleontologist Thaís Pansani standing in front of a reconstructed giant ground sloth skeleton at the Smithsonian National Museum of Natural History. AP SAO PAULO (Associated Press ...

New research revealed that the first humans to arrive in the Americas lived alongside giant ground sloths for thousands of years, challenging previous theories about human migration and megafauna ...

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 ...

SAO PAULO — 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 ...