There’s a gooey time capsule in the heart of Los Angeles, left over from an era when saber-toothed cats, dire wolves, camels, ...

Palaeontologist Thais Pansani stands in front the reconstructed skeleton of a giant ground sloth at the Smithsonian National Museum of Natural History in Washington, DC (Mary Conlon/AP ...

For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting, along with many other massive animals like mastodons ...

They would have shared the state with other giants, like ground sloths, and even saber-tooth tigers. "There are those who hypothesize that they were using those large teeth to perform some sort of ...

Paleontologist Thaís Pansani stands in front the reconstructed skeleton of a giant ground sloth at the Smithsonian National Museum of Natural History in Washington. (Picture credit: AP ...

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 ...

His team has analyzed evidence from footprints and geological layers that could date human presence in North America to more than 20,000 years ago. Giant Ground Sloth skeleton at the Brevard Museum of ...

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 ...

"Some of the most tantalizing clues come from an archaeological site in central Brazil called Santa Elina, where bones of giant ground sloths show signs of being manipulated by humans. Sloths like ...

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 ...