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Professor Raff discusses how genetic evidence has changed our understanding of the peopling of the Americas. Rather than a simple crossing of the Bering Land Bridge 13,000 years ago, DNA research suggests a more complex story involving population isolation during the Last Glacial Maximum (26,000-20,000 years ago), followed by multiple migration waves. Recent discoveries, like footprints at White Sands dating to 25,000+ years ago, continue to challenge existing theories.
Three Important TakeawaysGenetic evidence shows the ancestors of indigenous Americans descended from an isolated East Asian population that experienced gene flow with ancient North Siberians around 25,000 years ago.
Beringia wasn't just a narrow "land bridge" but a lost continent twice the size of Texas, with its southern coast relatively habitable during the Last Glacial Maximum.
Research in this field requires a multidisciplinary approach that respectfully incorporates indigenous knowledge and perspectives alongside scientific methods.
Origin: A Generic History of the Americas
https://anthropology.ku.edu/people/jennifer-raff
381 episodes
Professor Raff discusses how genetic evidence has changed our understanding of the peopling of the Americas. Rather than a simple crossing of the Bering Land Bridge 13,000 years ago, DNA research suggests a more complex story involving population isolation during the Last Glacial Maximum (26,000-20,000 years ago), followed by multiple migration waves. Recent discoveries, like footprints at White Sands dating to 25,000+ years ago, continue to challenge existing theories.
Three Important TakeawaysGenetic evidence shows the ancestors of indigenous Americans descended from an isolated East Asian population that experienced gene flow with ancient North Siberians around 25,000 years ago.
Beringia wasn't just a narrow "land bridge" but a lost continent twice the size of Texas, with its southern coast relatively habitable during the Last Glacial Maximum.
Research in this field requires a multidisciplinary approach that respectfully incorporates indigenous knowledge and perspectives alongside scientific methods.
Origin: A Generic History of the Americas
https://anthropology.ku.edu/people/jennifer-raff
381 episodes
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