Exceptional sperm cooperation in the wood mouse

  title={Exceptional sperm cooperation in the wood mouse},
  author={Harry Moore and Kater̆ina Dvor̆{\'a}kov{\'a} and Nicholas Jenkins and William Breed},
Spermatozoa from a single male will compete for fertilization of ova with spermatozoa from another male when present in the female reproductive tract at the same time. Close genetic relatedness predisposes individuals towards altruism, and as haploid germ cells of an ejaculate will have genotypic similarity of 50%, it is predicted that spermatozoa may display cooperation and altruism to gain an advantage when inter-male sperm competition is intense. We report here the probable altruistic… CONTINUE READING
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