Early Homo sapiens arrived in South America earlier than believed, new research shows. Sample of stone tools (scrapers, flakes and bipolar cobble) found at the Arroyo Seco 2 site. Image credit: G.G. Politis et al. The conclusion comes from the analysis of ancient tools and bones from a variety of extinct mammal species at a rich archaeological site called Arroyo Seco 2 (AS2), located just outside the city of Tres Arroyos, in the Pampas region of Argentina. According...
