More evidence points to the fact that humans may have been in the Americas thousands of years before believed.

New discoveries from several archaeological sites in North and South America suggest that ancient people first arrived in the ...

At New Mexico's White Sands, researchers have uncovered human footprints dated to between 21,000 and 23,000 years ago, as well as similar-aged tracks of giant mammals. But some archaeologists say ...

In recent years, new research methods, the examination of additional archaeological sites and the inclusion of more diverse ...

At New Mexico's White Sands, researchers have uncovered human footprints dated to between 21,000 and 23,000 years ago, as well as similar-aged tracks of giant mammals. But some archaeologists say ...

At New Mexico’s White Sands, researchers have uncovered human footprints dated to between 21,000 and 23,000 years ago, as well as similar-aged tracks of giant mammals. But some archaeologists ...

At New Mexico’s White Sands, researchers have uncovered human footprints dated to between 21,000 and 23,000 years ago, as well as similar-aged tracks of giant mammals. But some archaeologists ...

At New Mexico's White Sands, researchers have uncovered human footprints dated to between 21,000 and 23,000 years ago, as well as similar-aged tracks of giant mammals. But some archaeologists say ...