Science

Ancient DNA evidence narrows down when people first reached the Americas

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Briefings

Recent ancient DNA analysis suggests the first human populations in the Americas arrived during the Last Glacial Maximum, a period of extreme cold. This finding challenges previous theories about arrival timing and provides new insights into migration patterns. The study highlights the importance of genetic markers in reconstructing prehistoric human movements across the continent.

Key points

• Ancient DNA analysis indicates the first human populations in the Americas arrived during the Last Glacial Maximum, a period of extreme cold.
• The study highlights the importance of genetic markers in reconstructing prehistoric human movements across the continent.

Context and limitations

The evidence is limited to ancient DNA samples and does not include archaeological or environmental data. The study does not provide a definitive timeline for the arrival of humans in the Americas.

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