More signs emerge of New World settlers before 20,000 years ago

South American site yields controversial tools of pre-Clovis campers

Three simple stone tools

NEW WORLD ROCKS  Shown from different angles, three simple stone tools unearthed in Brazil belong to a set of finds suggesting that people reached South America around 24,000 years ago (3) and again about 15,000 years ago (1 and 2).

E. Boëda et al/Antiquity 2014

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