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Penis size interacts with body shape and height to influence male attractiveness

Compelling evidence from many animal taxa indicates that male genitalia are often under postcopulatory sexual selection for characteristics that increase a male’s relative fertilization success. There could, however, also be direct precopulatory female mate choice based on male genital traits. Before clothing, the nonretractable human penis would have been conspicuous to potential mates. This observation has generated suggestions that human penis size partly evolved because of female choice. Here we show, based upon female assessment of digitally projected life-size, computer-generated images, that penis size interacts with body shape and height to determine male sexual attractiveness. Positive linear selection was detected for penis size, but the marginal increase in attractiveness eventually declined with greater penis size (i.e., quadratic selection). Penis size had a stronger effect on attractiveness in taller men than in shorter men. There was a similar increase in the positive effect of penis size on attractiveness with a more masculine body shape (i.e., greater shoulder-to-hip ratio). Surprisingly, larger penis size and greater height had almost equivalent positive effects on male attractiveness. Our results support the hypothesis that female mate choice could have driven the evolution of larger penises in humans. More broadly, our results show that precopulatory sexual selection can play a role in the evolution of genital traits.

Proceedings of the National Academy of Sciences of the United States of America

Din pacate nu au studiat si relatia intre capacitatea craniala precum sin intre IQ si lungimea penisului - sint convins ca sint relatii invers proportionale. Precum si influenta capacitatii craniene, respectiv a IQ-ului, asupra coeficientului de atractie. Consider necesar un stidiu aprofundat care sa elucideze pentru totdeauna misterul.

Ca acum cred ca e si asta cunoscut: toate fetele vor un gagiu bine inalt, frumos si cu scula de 10 inch. Dar dupa ce il fu...garesc un pic, tot dupa ala probabil mai putin dotat la lungime dar cu creier de doctor chirurg si bani de avocat cu doctoratul in drept se vor duce.

Trebuie sa descarc tot articolul.
Ui' ce zice wolfram alpha:
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