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Article

Human migrations: the two roads taken.

Current biology : CB - 10 Mar 2009

O'Rourke Dennis H

Abstract excerpt

America was peopled from Asia by at least the end of the last ice age, but the exact timing of entry and the composition of the source population are unclear. A new analysis of two rare mitochondrial haplogroups suggests two separate Asian migrations into the Americas, indicating simultaneous but independent Asian source populations for early American colonists.

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Identifiers

PMID: 19278634
DOI: 10.1016/j.cub.2009.01.021

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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