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Evolutionary biology (Communication arising)

Significance of primate sexual swellings

Abstract

Zinner et al. question our finding that the size of a female wild baboon's sexual swellings predicts her lifetime reproductive success, suggesting that we should have controlled for female height in our analyses of female fitness. But the issue is not whether a female's fitness is independent of her height, but whether males draw inferences about her fitness from her sexual swelling, and do so independently of her height. Our results indicate that they do1,2, supporting the hypothesis that sexual swellings advertise female reproductive value.

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Correspondence to Leah G. Domb.

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Domb, L., Pagel, M. Significance of primate sexual swellings. Nature 420, 143 (2002). https://doi.org/10.1038/420143a

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