Add Yahoo as a preferred source to see more of our stories on Google. An artist’s interpretation of mammals that lived during the last Ice Age. Fossils from similar species of an armadillo-like ...

Researchers in Costa Rica have unearthed fossils from a mastodon and a giant sloth that lived as many as 40,000 years ago, officials announced Friday, calling it the biggest such find here in decades.

The National Museum of Costa Rica has announced the unearthing of fossils from a mastodon and a giant sloth in Cartago province. This significant find, believed to date back as far as 40,000 years, is ...

Add Yahoo as a preferred source to see more of our stories on Google. Harlan's ground sloth fossil skeleton excavated and displayed at the La Brea Tar Pits in Los Angeles. Larisa DeSantis A two-toed ...

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

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Researchers in Costa Rica have unearthed fossils from a mastodon and a giant sloth that lived as many as 40,000 years ago, officials announced Friday, calling it the biggest such find here in decades.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Imagine a sloth. You probably picture a medium-size, tree-dwelling creature hanging ...