Butchered bones hint humans were in South America 21,000 years ago

Prehistoric mammal bones found at a construction site in Argentina appear to have been cut with stone tools, suggesting that humans lived in the region much earlier than previously thought

​Prehistoric mammal bones found at a construction site in Argentina appear to have been cut with stone tools, suggesting that humans lived in the region much earlier than previously thought Prehistoric mammal bones found at a construction site in Argentina appear to have been cut with stone tools, suggesting that humans lived in the region much earlier than previously thought