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

A new road being built led to the bones of two giant ground sloths being discovered in Wilmington, launching them into local ...

Two fossil hunters dropped into a Florida river that looked like brewed coffee and came back with a time capsule. What ...

Massive underground tunnels discovered across South America are not human-made. Scientists now believe extinct giant ground ...

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 ...

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 ...

Ancient sloths lived in trees, on mountains, in deserts, boreal forests and open savannahs. These differences in habitat are primarily what drove the wide difference in size between sloth species. But ...

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 ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Imagine a sloth. You probably picture a medium-size, tree-dwelling creature hanging ...