1. Beauty and the beast: mechanisms of sexual selection in humans
David A. Puts 
Evolution and Human Behavior 
Volume 31, Issue 3, Pages (May 2010)
DOI: /j.evolhumbehav
Copyright © 2010 Elsevier Inc. Terms and Conditions

2. Fig. 1
Different mechanisms of sexual selection are theoretically distinct avenues by which mates can be obtained. Mechanisms vary in importance to fitness across species. Distance along an axis represents the correlation between success in that form of mating competition and mating success. (Examples are approximations.)
Evolution and Human Behavior  , DOI: ( /j.evolhumbehav )
Copyright © 2010 Elsevier Inc. Terms and Conditions

3. Fig. 2
Small discs, hemispheres and spheres represent females' movement in relation to each other. Cylinder and large disc, hemisphere and sphere represent the regions that a male must defend in order to monopolize the females depicted. Defense regions increase in size and decrease in defensibility from left to right and top to bottom and represent (A) one-dimensional, (B) two-dimensional, (C) three-dimensional hemispheric, and (D) three-dimensional spherical regions.
Evolution and Human Behavior  , DOI: ( /j.evolhumbehav )
Copyright © 2010 Elsevier Inc. Terms and Conditions

4. Fig. 3
From a great ape progenitor with single-male polygyny and single-male social groups (1) (Harrison & Chivers, 2007), two trajectories for African apes are depicted: a continuation of this pattern in Gorilla, and the evolution of multi-male groups for female defense, as in African lions, in the common ancestor of Pan and Homo (2). In Pan, within-group monopolization of females was difficult, and greater sperm competition thus predominated (3), resulting in lower sexual dimorphism (Jungers & Susman, 1984) but larger investments in testicular tissue (Short, 1979). In Homo and their immediate ancestors, individual males more effectively monopolized females, perhaps due female cooperation, between-group competition, and more intensive use of weapons.
Evolution and Human Behavior  , DOI: ( /j.evolhumbehav )
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5. Fig. 4
Masculinity in facial hair, voice, facial structure and body build has larger positive effects on perceptions of dominance than on perceptions of attractiveness. Note: the important comparisons are the effects of masculinity on attractiveness versus dominance within each study. Between-studies comparisons are confounded by differences in the magnitude of manipulations and other methodological details.
Evolution and Human Behavior  , DOI: ( /j.evolhumbehav )
Copyright © 2010 Elsevier Inc. Terms and Conditions