Perhaps, as Davis and other archeologists suggest, those people came from northeast Asia by boat, moving south along the Pacific coastline and setting up camps along the way. “The Pacific coast is the most likely candidate—it seems like it would have had areas of exposed and habitable land between about 17,000 and 16,000 years ago,” says Geoffrey M. Smith, executive director of the Great Basin Paleoindian Research Unit at the University of Nevada Reno, who wasn’t involved in the new research. “It may have been more short trips in some sort of watercraft between exposed and habitable patches along the coast.”
But this scenario presents some archeological challenges: First, there
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