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 ...

While divers were searching for Maya artifacts in 2014, they came across the remains of an ancient giant sloth in a deep sinkhole in Cara Blanca, Belize. They managed to retrieve fossils of the ...

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: ...

Images of meters-long fossils show remains of giant sloths housed at the Paleontological Museum Megatherium in Ecuador, not remains of a human giant. Examples of the photo shared online can be viewed ...

This undated photo provided by the National Park Service shows a human print inside a large sloth track at the White Sands National Monument in New Mexico. Researchers studying a trail of fossilized ...

Twenty thousand years ago, a giant ground sloth the size of a large bear lumbered into a cave in Nevada and, well, went to the bathroom. Its dung — rich with the remains of the lilies and other plants ...

Roughly 150 people were in and out of the University of Iowa’s Museum of Natural History Monday to celebrate Rusty the Sloth’s 30th birthday. With music blaring, vanilla cake with the sloth’s face, ...

Kate Sheridan is a science writer. She's previously written for STAT, Hakai Magazine, the Montreal Gazette, and other digital and print outlets. Before arriving in New York City, she lived in Montreal ...

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WHITE SANDS NATIONAL MONUMENT, N.M. – Researchers studying a trail of fossilized footprints on a remote New Mexico salt flat have determined the tracks tell the story of a group of Ice Age hunters ...

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 ...