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Native Americans have their origin in a single migratory wave from Asia

The conserved remains of two infants found in Alaska, dating 11.5 thousand years ago provide new clues about the origin of the ancient Americans. They may solve a long debate about when ancient migratory populations arrived in Alaska, coming from Asia trough the region called Beringia (presently including the Bering sea). The research derived from the sequencing of the genome of the infants, suggests that the ancestors of Native Americans originated in a single population of settlers who arrived in Alaska about 25000 years ago. Two groups separated from this population: one that remained in the northern part of the continent and another one that migrated south and became ancestors of the indigenous American population.

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