The well-preserved, genetically intact skeleton of a teenage girl who lived about 13,000-12,000 years ago in what is now Mexico is helping resolve a long-standing question of the link between first Americans (Paleoamericans) and modern Native Americans. Cave diver inspects the skull of Naia, a 12,500-year-old teenage girl discovered in a submerged cave on the Yucatan peninsula of Mexico. Image credit: Daniel Riordan Araujo. A team of science divers...
