More than 75 million years ago, a giant reptile known as the “terror crocodile” roamed the waters of North America.

Something strange is happening beneath the heart of North America. The continent’s ancient core, the craton, is changing ...

The prehistoric crocodile relative may have tolerated both freshwater and saltwater habitats, allowing it to conquer North ...

A study published in the journal Nature Geoscience has revealed a subtle yet significant phenomenon beneath the North ...

A collection of 6,500-year-old wooden dart tips found deep within a Texas cave were likely, at one point in their usage, ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust above it to "drip" and suck down rocks from across the continent.

North America is dripping—with sizable blobs of rock sinking from the underside of the continent, beneath the U.S. Midwest, ...

At the ceremony, he said he expected some criticism from the scientific community regarding the reburial, as more could one day be learned from the ancient boy’s remains. Montana State University’s ...

Squat rhinos lived in North America about 12 million years ago, congregating in huge, water-bound herds much like modern hippos.

When Maureen Long talks to the public about her work, she likes to ask her audience to close their eyes and think of a ...