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Science. 2007 Nov 16;318(5853):1066; author reply 1066.

Comment on "Origin of human bipedalism as an adaptation for locomotion on flexible branches".

Author information

1
Department of Anthropology, University of Toronto, Toronto, ON, M5S 2S2, Canada. begun@chass.utoronto.ca

Abstract

Thorpe et al. (Reports, 1 June 2007, p. 1328) concluded that human bipedalism evolved from a type of bipedal posture they observed in extant orangutans with seemingly human-like extended knees. However, humans share knuckle-walking characters with African apes that are absent in orangutans. These are most parsimoniously explained by positing a knuckle-walking precursor to human bipedalism.

PMID:
18006725
DOI:
10.1126/science.1146446
[Indexed for MEDLINE]
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