In the depths of the Hoyo Negro pit 180 feet below sea level, a diving team has successfully recovered the skulls, jaw bones, and other remains of two long-extinct Ice Age species.

following the giant ice shelf that covered the northern Atlantic during the ice age 20,000 years ago. In prehistoric North America, the short-faced bear (Arctodus simus) ruled the land.

A massive mammoth skull dating back 40,000 years has been unearthed in Central Texas. The Texas Through Time Fossil Museum in Hillsboro announced the skull of a male Columbian mammoth, a distant ...

Grizzlies have inhabited North America for tens of thousands of years, persisting through the end of the last ice age even as many of their competitors—such as the giant short-faced bear and ...