Competition drives cooperation among closely-related sperm of deer mice

@inproceedings{Fisher2010CompetitionDC,
  title={Competition drives cooperation among closely-related sperm of deer mice},
  author={Heidi S Fisher and Hopi E Hoekstra},
  booktitle={Nature},
  year={2010}
}
Among the extraordinary adaptations driven by sperm competition is the cooperative behaviour of spermatozoa. By forming cooperative groups, sperm can increase their swimming velocity and thereby gain an advantage in intermale sperm competition. Accordingly, selection should favour cooperation of the most closely related sperm to maximize fitness. Here we show that sperm of deer mice (genus Peromyscus) form motile aggregations, then we use this system to test predictions of sperm cooperation. We… CONTINUE READING

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