Sperm competition: discrimination isn't always bad

Curr Biol. 2010 May 25;20(10):R444-6. doi: 10.1016/j.cub.2010.03.052.


Observing sperm in competition has been limited by our ability to discriminate between males' sperm. Recent work has overcome this obstacle, while another study reports on seminal fluid with very specific spermicidal activity, suggesting discrimination is easy for some.

MeSH terms

  • Animals
  • Female
  • Male
  • Selection, Genetic*
  • Semen / chemistry
  • Spermatocidal Agents / chemistry
  • Spermatocidal Agents / metabolism
  • Spermatozoa / cytology
  • Spermatozoa / metabolism*


  • Spermatocidal Agents