"For more than a decade, evidence has been piling up that humans
colonized the Americas thousands of years before the Clovis people. The
Clovis, who are the early ancestors of today's Native Americans, left
abundant evidence of their lives behind in the form of tools and graves.
But the mysterious pre-Clovis humans, who likely arrived 17,000 to
15,000 years ago, have left only a few dozen sources of evidence for
their existence across the Americas, mostly at campsites where they
processed animals during hunting trips. Now a fresh examination of one
such campsite, a 14,000-year-old hunter's rest stop outside the city of
Tres Arroyos in Argentina, has given us a new understanding of how the
pre-Clovis people might have lived."
14,000-year-old campsite in Argentina adds to an archaeological mystery