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Ancient Andean cities boasted cosmopolitan residents

Mountainous region with the remains of ancient stone structures.

Genomic analysis of remains from the fifteenth-century Inca site Machu Picchu helped scientists to map the movements of Andean peoples over millennia. Credit: Martin St-Amant/Wikimedia Commons (CC-BY-SA-3.0)

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Nature 581, 123 (2020)




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