T. rex evolved in North America from Asian ancestors. Climate shifts and extinction events helped tyrannosaurids and ...

Explore the legends and evidence surrounding the mysterious giants said to have once ruled North America, challenging what we ...

Molecular clues from collagen in old bones are teaching us about the lives, movements, and demise of Ice Age megafauna like ...

Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized ...

A large-scale genomic study of over 1,500 individuals from 139 underrepresented Indigenous groups across northern Eurasia and the Americas sheds new ...

The Midcontinent Rift is a giant tear that formed in what is now the U.S. Midwest 1.1 billion years ago. Nicknamed North ...

Giant sloths used to roam all over North America. Over 10 times bigger than ... The largest of these ancient animals were those in the genus Megatherium–roughly the size of a modern Asian ...

In the lowland marshes and swamps of Cretaceous North America, Deinosuchus watched and ... Instead, the study suggests, Deinosuchus belonged to an ancient lineage that split off before the last ...

A large-scale genome study shows that Indigenous peoples in the Americas split off several times, resulting in loss of ...

Contrary to the map many of us have in our minds, almost all of South America is farther east than North America. Most of us have a rough map of the world in our minds that we use any time we ...

Scientists confirm Zealandia, Earth's eighth continent, submerged almost two million square miles, with only 5% above water.