In southern Brazil and northern Argentina, scientists have discovered massive underground tunnels stretching for hundreds of ...

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 ...

A Facebook post features several pictures of large bones arranged in a way that resembles a human skeleton. People are observing the bones in some of the photos. "The remains of GIANTS were discovered ...

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 ...

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: ...

Large animals started going extinct at the end of the Pleistocene, just as both climate change and a new predator — Homo sapiens — arrived on the scene. But despite humans’ brutal legacy of killing ...

The final days of a giant sloth that once stood 13 feet tall have been revealed — thanks to the discovery of an enormous tooth. A partly fossilized tooth belonging to the gigantic beast was unearthed ...

Rainforest-inspired setting in heart of Central Florida’s tourism district will house dozens of the low-energy animals, ...