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Science 8 October 2004:
Vol. 306. no. 5694, p. 210
DOI: 10.1126/science.306.5694.210a
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News of the Week

HUMAN ORIGINS:
Louse DNA Suggests Close Contact Between Early Humans

Elizabeth Pennisi

A genetic analysis of head lice suggests that two distinct species of early humans had close physical contact after a long period of isolation.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)