Males vs. Females: Sexual Conflict

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In the animal kingdom, sex often involves more conflict than cooperation. The struggle between males and females leads to a host of weird adaptations, from chastity belts to anti-aphrodisiacs.

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Want to learn more about the topic in this week’s video? Here are some keywords/phrases to get your googling started:
Sexual conflict: an evolutionary mismatch between the interests of males and females, especially concerning mating strategies

Script Writer: Kate Yoshida (twitter: @KateYoshida)
Script Editor: Emily Elert (twitter: @eelert)
Video Illustrator: Ever Salazar (twitter: @eversalazar)
Video Director: Emily Elert (twitter: @eelert)
With Contributions From: Henry Reich (@minutephysics), Alex Reich (@alexhreich) and Peter Reich
Music by: Nathaniel Schroeder:

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Brennan, P.L.R., Clark, C.J., & Prum, R.O. (2010). Explosive eversion and functional morphology of the duck penis supports sexual conflict in waterfowl genitalia. Proceedings of the Royal Society B 277: 309–1314.

Chapman, T., Arnqvist, G., Bangham J., & Rowe, L. (2003). Sexual conflict. Trends in Ecology and Evolution 18: 41–47.

Dean, R., Nakagawa, S., & Pizzari, T. (2011). The risk and intensity of sperm ejection in female birds. American Naturalist 178(3): 343–354.

Hosken D.J. & Stockley, P. (2004). Sexual selection and genital evolution. Trends in Ecology and Evolution 19: 87-93.

Koprowski, J.L. (1992). Removal of copulatory plugs by female tree squirrels. Journal of Mammalogy 732:572—76.

Price, C.S.C., Dyer, K.A., Coyne, J.A. (1999). Sperm competition between Drosophila males involves both displacement and incapacitation. Nature 400: 449-452.

Rowe, L., Arnqvist, G., Sih, A. & Krupa, J. J. (1994). Sexual conflict and the evolutionary ecology of mating patterns: water striders as a model system. Trends in Ecology and Evolution 9:289-293.

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