After 128 years of exploration and fossil excavation, researchers have finally unearthed the skull of Genyornis newtoni.

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

Learn about saber-toothed cats, mastodons, giant ground sloths that once lived in southern Idaho in Hagerman and Pocatello this summer.

According to a news release from TxDOT, an archeological survey in Lubbock unearthed the bones of prehistoric animals called ...

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

The larger sloths didn’t do much tree climbing, at risk of falling to their deaths. Instead, they survived by being ...

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.

Archaeologists in Texas recently discovered prehistoric megafauna bones, including a giant ground sloth, during a highway ...

Sloths have a reputation for being sluggish and slow, spending most of their lives dozing in trees, but a new study suggests ...

In a remarkable paleontological discovery that has scientists buzzing with excitement, a well-preserved giant sloth skeleton was recently unearthed in central Florida. The find represents one of the ...

NHL team will be called the Utah Mammoth, a nod to the massive creature that roamed the state thousands of years ago.

A giant beaver skull, right, compared to a modern beaver ... An illustration of the now-extinct Jefferson's ground sloth. ALBANY — Headlines across the internet would have you believe dire ...