Footprints in New Mexico made 23,000 years ago are earliest evidence of human activity in New World
Scientists are describing a set of 23,000-year-old human footprints discovered in New Mexico as the earliest evidence of human activity in the Americas, 10,000 years earlier than previously believed. British and American archaeologists uncovered the prints in soft mud adjoining Alkali Flat, a dry lakebed at White Sands National Park in southern New Mexico. Using … Read more