Behavioural Changes At Adolescence in Chimpanzees

In: Behaviour
Author: Anne E. Pusey
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BEHAVIOURAL CHANGES AT ADOLESCENCE IN CHIMPANZEES by ANNE E. PUSEY') (Department of Ecology, Evolution and Behavior, University of Minnesota, Minneapolis, MN 55455, U.S.A.) (With 14 Figures) (Acc. 17-IV-1990) Introduction Adolescence is recognised as a distinct period of development in primates. Following a relatively long period of slow juvenile growth and reproductive immaturity, adolescence commences with a series of rapid endocrinological changes and ends at the completion of body growth (HOBSON et al., 1980; WATTS, 1985). During adolescence, males, and females of some species, show a spurt in growth, secondary sexual char- acteristics such as sexual dimorphism in body shape and

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