In a discovery that challenges long-standing views of prehistoric life, scientists have uncovered vast underground tunnels ...

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, scientists ...

Most of us are familiar with sloths, the bear-like animals that hang from trees, live life in the slow lane, take a month to digest a meal and poop just once a week. Their closest living relatives are ...

BOURNEMOUTH, England (Reuters) - Scientists have uncovered evidence of ancient humans engaged in a deadly face-off with a giant sloth, showing for the first time how our ancestors might have tackled ...

Professor Loren E. Babcock and Dr H. Gregory McDonald discuss the historical significance of palaeontology, focusing on key ...

Fossil discoveries are exciting on their own, but sometimes, they carry even more information about the past. Newly uncovered fossils from an extinct giant ground sloth that lived in Belize 27,000 ...

A utility crew digging a trench in Florida came across a fossilized part of an 11,000-year-old giant ground sloth that was originally named by Thomas Jefferson. The team in Florida’s Manatee County ...

After developing source relationships for more than a year, science reporter Christina Larson secured exclusive media access for the AP to visit a University of Sao Paulo lab housing 27,000-year-old ...