New research shows 8,000-pound sloths once dug caves, adapted to oceans, and roamed widely—until climate and humans brought ...

Explore how ancient sloths evolved in size, from small climbers to massive ground dwellers, shaped by shifting climates and ...

The extinct mammals were about five times larger than a grizzly bear–and filled caves with their poop.

Further information could still be discovered." The Shasta ground sloth is one of the two species of giant ground sloth found from Tule Springs Fossil Beds National Monument. TxDOT is in contact ...

Ground sloths had a special fondness for caves, and their size undoubtedly played a role in their ability to find and make shelters. The moderately sized Shasta ground sloth favored small ...

This article continues after the gallery. There are two types of Giant Ground Sloths: the Nothrotheriops shastensis, known as the Shasta Ground Sloth, and the Megalonyx, or Large Clawed Ground ...

Ahead of a road construction project in Lubbock, Texas, the state's Department of Transportation sent archaeologists to ...

Most people are familiar with modern sloths — slow-moving, tree-dwelling mammals that digest food slowly and descend only ...

The Shasta ground sloth is one of the two species of giant ground sloth found from Tule Springs Fossil Beds National Monument. The remains are estimated to be between 18,000-36,000 years old ...

The prehistoric predators evolved to hunt large-bodied prey species, which paleontologists have narrowed down to horses, young mammoths, and other herbivores like the Shasta ground sloth.