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Sex differences in jealousy: a meta-analytic examination
11 May 2012
Brad J. Sagarin, Amy L. Martin, Savia A. Coutinho, John E. Edlund, Lily Patel, John J. Skowronski, Bettina Zengel
Abstract: The theory of evolved sex differences in jealousy predicts sex differences in responses to sexual infidelities and emotional infidelities. Critics have argued that such differences are absen...
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Fear is readily associated with an out-group face in a minimal group context
10 May 2012
Carlos David Navarrete, Melissa M. McDonald, Benjamin D. Asher, Norbert L. Kerr, Kunihiro Yokota, Andreas Olsson, Jim Sidanius
Abstract: Research on prepared learning demonstrates that fear-conditioning biases may exist to natural hazards (e.g., snakes) compared to nonnatural hazards (e.g., electrical cords) and that fear is ...
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Short stature in African pygmies is not explained by sexual selection
10 May 2012
Noémie S.A. Becker, Priscille Touraille, Alain Froment, Evelyne Heyer, Alexandre Courtiol
Abstract: African pygmies' short stature has been studied for more than a century, but the evolution of this extreme phenotype remains unknown. The present study tests the hypothesis that sexual selec...
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Childlessness drives the sex difference in the association between income and reproductive success of modern Europeans
09 May 2012
Julia A. Barthold, Mikko Myrskylä, Owen R. Jones
Abstract: The association between reproductive success and income in economically developed societies remains a controversial and understudied topic. The commonly made statement that individuals with ...
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A Bayesian approach to the evolution of social learning
25 April 2012
Charles Perreault, Cristina Moya, Robert Boyd
Abstract: There has been much interest in understanding the evolution of social learning. Investigators have tried to understand when natural selection will favor individuals who imitate others, how i...
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