Human sperm competition: testis size, sperm production and rates of extrapair copulations

@article{Simmons2004HumanSC,
  title={Human sperm competition: testis size, sperm production and rates of extrapair copulations},
  author={Leigh W. Simmons and Ren{\'e}e C. Firman and Gillian Rhodes and Marianne Peters},
  journal={Animal Behaviour},
  year={2004},
  volume={68},
  pages={297-302}
}

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