additional outline materials for Dec 4 lecture

additional outline materials for Dec 4 lecture - Selim 30...

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Unformatted text preview: Selim 30 November 2007 Extended Male Growth in a Fossil Homimn Species Charles A. Lockwood, Colin 6. Menter, .Ziacopo Moggi—Cecchi, and Andre W. Keyser “In primates that are highly sutually dimorphic, males often reach maturity later than females, and young adult males do not show the size, morphology, and coloration of mature males. Here we describe extended male development in a hominin species, Pomnfhmpus mbusfus. Ranking a large sample of facial remains on the basis of dental wear stages reveals a difference in size and robusticity between young adult and old adult males. Combined with estimates of sexual dimorphism, this pattern suggests that male reproductive strategy focused on monopolizing groups of females, in a manner similar to that of silverback gorillas. However, males appear to have borne a substantial cost in the form of high rates Livesfyle of Homo entry: Tor'r'alba and Ambmna, Spain, F.C. Howell Seasonal big game Terr-a Arna'ta Murie-An‘l’oincfi'e and Henry dc Lumley SeasonaI gafhering and hunting, hu'rs, “paleo-make-up" Homo mam - he first humcm - almosf likc LEE—in many. MW WW3 I1": getting a "file cold, lcf's head samh! ...
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