Review

Sexual Selection in Males and Females

Science  21 Dec 2007:
Vol. 318, Issue 5858, pp. 1882-1885
DOI: 10.1126/science.1133311

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Abstract

Research on sexual selection shows that the evolution of secondary sexual characters in males and the distribution of sex differences are more complex than was initially suggested but does not undermine our understanding of the evolutionary mechanisms involved. However, the operation of sexual selection in females has still received relatively little attention. Recent studies show that both intrasexual competition between females and male choice of mating partners are common, leading to strong sexual selection in females and, in extreme cases, to reversals in the usual pattern of sex differences in behavior and morphology.

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