New clues suggest people reached the Americas around 30,000 years ago
Ancient bones from a Mexican rock-shelter point to humans arriving earlier than often assumed
![Coxcatlan Cave entrance](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/06/060421_bb_early-americans_feat.jpg?fit=1030%2C580&ssl=1)
New radiocarbon dates for rabbit bones excavated in the 1960s at Mexico’s Coxcatlan Cave (shown here) raise the possibility that humans lived there roughly 30,000 years ago.
Andrew D. Somerville