How the west was won

• Autores: Michael Bawaya
• Localización: New scientist, ISSN 0262-4079, Nº. 2910, 2013, págs. 42-45
• Idioma: inglés
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• Resumen

  • Bawaya investigates when the Americas were first settled and by whom. The colonization of the Americas has long fascinated and frustrated archaeologists. It was the last great human migration, the final leg of man's journey out of Africa to lay claim on Earth's habitable continents. Big-game hunters from Asia were always considered likely candidates, but it wasn't until the mid-1960s that this idea was formulated into the Clovis First model, primarily by archeologist C. Vance Haynes of the University of Arizona in Tucson. But over the years inconvenient bits of evidence have piled up. Recent DNA studies also contradict the old orthodoxy. By comparing the genomes of modern Asian and Native American people and estimating the amount of time it would take for the genetic differences to accumulate, geneticists estimate that people entered the Americas at least 15,000 years ago--1,500 years earlier than in the Clovis model.