Includes bibliographical references (pages 333-385) and index.
Beginnings -- Principles and mechanisms of sexual selection -- Sexual selection in primates and during human evolution -- Paternal investment -- Sexual selection in contemporary humans -- The evolution and development of the human mind -- Developmental sex differences -- Sex differences in brain and cognition -- Sex differences in modern society.
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Geary (psychology and anthropology, U. of Missouri-Columbia) thinks culturally constructed gender roles alone cannot account for the differences in the social behavior of men and women. He turns to Darwin's theory of sexual selection as the best avenue for understanding. His main focus is how th etwo elements of competition between males and of females selecting mates has influenced human behavior over the centuries and across cultures.