Butchered bones trace people had been in South America 21,000 years in the past

Marks discovered on the 21,000-year-old bones of a large, armadillo-like animal in Argentina often is the oldest proof of people within the southern South America.

If confirmed by extra excavation and analysis, the findings might push again the date people had been recognized to be residing within the space by about 5 millennia, to the tip of the final glacial interval. That…