Head lice reveal contact between modern and anci...( d and colleagues therefore propose a sc...)

Head lice reveal contact between modern and ancient humans

d and colleagues therefore propose a scenario in which H. sapiens and H. erectus carried distinct types of lice. As the first waves of modern humans left Africa about 100,000 years ago and modern humans replaced archaic forms, the two forms engaged in enough contact-whether in the form of fighting, swapping clothes, or interbreeding-for archaic lice to make the switch to modern human hosts. Tackling the question of interbreeding, the authors suggest, might now best be pursued by studying the other human louse P. pubis, which requires sexual contact for transmission.

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Contact: Paul Ocampo
pocampo@plos.org
415-624-1224
Public Library of Science
4-Oct-2004

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