The giant ground sloth was given its scientific name Megalonyx jeffersonii by the US’s third president and founding father ...

Manatee County utility crews unearthed a piece of history, dating back thousands of years, while digging a trench for a ...

Ambitious projects aim to put dire wolves, woolly mammoths and passenger pigeons back into our ecosystems. But with so many ...

Thousands of years ago, ground sloths as massive as elephants roamed the Americas. Their history, marked by spectacular adaptations, came to an abrupt end with the arrival of humans. A recent study ...

Giant sloths were highly adaptable, living everywhere from tropical deserts to frozen tundras. But their size came with a cost.

Today, sloths are slow-moving, tree-dwelling creatures that live in Central and South America and can grow up to 2.5 feet long. Thousands of years ago, however, some sloths walked along the ground ...

A prehistoric discovery near Hays is shedding some new light on a giant ground sloth species that lived more than 10,000 years ago.

A fossil of the extinct ground sloth, Megalonyx jeffersonii, was found in Ellis County, Kansas, offering new insight into its presence in the Great Plains.

“We know we’ve found giant ground sloth by its distinctive tooth,” Ringstaff said. “Whether all the bones are giant ground sloth or there are different animals such as mammoth or mastodon ...

Officials discovered the remains of a giant ground sloth and other prehistoric animals near Lubbock while working on a new highway. The Texas Department of Transportation contracted an ...

Giant sloths used to roam all over North America. Over 10 times bigger than today’s sloths, many lived on the ground instead of in the trees and their closest living relatives are actually ...

Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big.