Science
In an article for "Science", a team of researchers based at Bournemouth University conclude that a series of human footprints preserved at White Sands National Park in the U.S. state of New Mexico date back between 21,000 and 23,000 years ago during the Last Glacial Maximum, suggesting that humans lived in the Americas 5,000 years earlier than previously thought. The team also determined that most of the footprints came from children and teenagers.
Sources: NPR