Fossilized human footprints were at White Sands National Park, New Mexico. The footprints dated back more than 20,000 years and were found buried under numerous levels of gypsum soil.
This discovery at White Sands National Park means that the Mescalero Apache tribe lived in that area thousands of years ago.
Archeologists said that the discovery is important as it changes the timeline of the North American human habitation in the area. It also shows that the people in North America have been in the area thousands of years earlier than what was normally believed.
Image credit: Bennett et al., doi: 10.1126/science.abg7586