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Physical attractiveness and reproductive success in humans: evidence from the late 20th century United States

机译:人类的身体吸引力和生殖成功:20世纪晚期美国的证据

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Physical attractiveness has been associated with mating behavior, but its role in reproductive success of contemporary humans has received surprisingly little attention. In the Wisconsin Longitudinal Study (1244 women, 997 men born between 1937 and 1940), we examined whether attractiveness assessed from photographs taken at age ~18 years predicted the number of biological children at age 53-56 years. In women, attractiveness predicted higher reproductive success in a nonlinear fashion, so that attractive (second highest quartile) women had 16% and very attractive (highest quartile) women 6% more children than their less attractive counterparts. In men, there was a threshold effect so that men in the lowest attractiveness quartile had 13% fewer children than others who did not differ from each other in the average number of children. These associations were partly but not completely accounted for by attractive participants' increased marriage probability. A linear regression analysis indicated relatively weak directional selection gradient for attractiveness (bate=0.06 in women, bate=0.07 in men). These findings indicate that physical attractiveness may be associated with reproductive success in humans living in industrialized settings.
机译:物理吸引力与交配行为有关,但是其在当代人类生殖成功中的作用却很少受到关注。在威斯康星州纵向研究(1244名女性,997名男性,1937年至1940年之间出生)中,我们检查了根据在〜18岁时拍摄的照片评估的吸引力是否能预测53-56岁时有生物学子女的人数。在女性中,吸引力预示着以非线性方式实现更高的生殖成功率,因此,具有吸引力(第二高四分位数)的女性的子女比没有那么有吸引力的女性多16%,而具有非常吸引力(最高四分位数)的女性多6%。在男性中,存在阈值效应,因此处于吸引力最低的四分位数的男性的孩子数比其他在平均子女数上没有差异的孩子少13%。这些联系部分但不完全是由有吸引力的参与者增加的结婚概率来解释的。线性回归分析表明吸引力的方向选择梯度相对较弱(女性bate = 0.06,男性bate = 0.07)。这些发现表明,身体吸引力可能与生活在工业化环境中的人类的生殖成功有关。

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