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

They had “very large claws on their forelimbs” and were “covered in thick hair,” the Illinois State Museum said.

A Texas road project unearthed remains of Ice Age era animals. Here's what they found, and what will happen to the remains.

During an environmental review for Loop 88 construction, officials discovered large, prehistoric animal bones, including a ...

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.

A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

An analysis of the sloth family tree suggests three different groups of the animals evolved to gigantic sizes in response to ...

The remains of an Ice Age era animal have been unearthed in Lubbock during a road construction project. Here's what it was ...

Recent archaeological excavations at a highway construction site in West Texas have uncovered the fossilized remains of Ice ...