Sperm competition: Motility and the midpiece in primates

  title={Sperm competition: Motility and the midpiece in primates},
  author={M. Anderson and A. Dixson},
  • M. Anderson, A. Dixson
  • Published 2002
  • Biology, Medicine
  • Nature
  • In animals with multiple-partner mating systems, the gametes of two or more males must compete to fertilize a given set of ova. Here we show that the volume of the midpiece in individual sperm is significantly greater in primate species in which the females mate with multiple partners, and in which males have larger testes in relation to their body weight, than in those species that mate with only one partner and have relatively small testes. Our results indicate that sexual selection by sperm… CONTINUE READING
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