New Mexico’s most famous fossilized footprints are every bit as old as they seem, according to a new University of Arizona study that bolsters the case for the earliest evidence of humans ever found ...

At the Cerutti Mastodon site in California, researchers found broken mastodon bones and stone cobbles dated to 130,000 years ago—suggesting human activity far earlier than accepted timelines. Critics ...

Ancient seas left an expanse of rolling gypsum dunes known as White Sands in New Mexico, and within this surreal landscape lies evidence that humans have roamed the Americas for at least 20,000 years.

WHITE SANDS, N.M. (KRQE) – What if humans left their first mark on the Americas earlier than we think? An anthropologist said footprints uncovered here in the Land of Enchantment tell a new story.