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Primate SexualityComparative Studies of the Prosimians, Monkeys, Apes, and Humans$
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Alan F. Dixson

Print publication date: 2012

Print ISBN-13: 9780199544646

Published to Oxford Scholarship Online: May 2015

DOI: 10.1093/acprof:osobl/9780199544646.001.0001

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Sexual selection and sexually dimorphic traits

Sexual selection and sexually dimorphic traits

(p.232) Chapter 7 Sexual selection and sexually dimorphic traits
Primate Sexuality

Alan F. Dixson

Oxford University Press

This chapter describes the sexual dimorphism of primates in terms of body weight, canine tooth, vocal anatomy, and cutaneous glands and scent-marking displays. It also discusses sexual skin and other secondary sexual traits in adult males. Some specific examples of these traits are capes of hair in male geladas and hamadry as baboons, bony paranasal swellings in mandrills and drills, and the impressive cheek flanges of the adult male orangutan. The chapter then examines the secondary sexual characteristics of adult female and addresses the swelling of female sexual skins. Female sexual skin swellings appear to be the result of runaway sexual selection. Sexual selection and human sexual dimorphism are also explained.

Keywords:   sexual dimorphism, sexual skin, sexual traits, secondary sexual characteristics, sexual selection

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