Modern sloths hang out in trees, move at a slow pace and eat a vegetarian diet -- but the same thing can't be said for their extinct relative, Mylodon. This ancient sloth ate meat, unlike its ...

The giant ground sloth was given its scientific name Megalonyx jeffersonii by the US's third president and founding father Thomas Jefferson in 1797.

A Manatee County utilities crew was surprised to find a giant ground sloth fossil while digging a trench for a water line.

A partial skull of a 10-foot-tall ground sloth, Megalonyx jeffersonii, was discovered in Ellis County, Kansas, providing new insights into the animal’s distribution and geological history in … ...