Now, a team working in New Mexico has found scores of human footprints dated to between 23,000 and 21,000 years old. The discovery could transform views about when the continent was settled.

“The site in New Mexico has rewritten history books,” Sally Reynolds, principal academic in paleoecology at Bournemouth ...

This Oct. 2023 photo made available by the National Park Service shows human footprints infilled with white gypsum sand at the White Sands National Park in New Mexico. (NPS via AP) (AP) — New research ...