title: Sperm competition: defining the rules of engagement.
abstract: Genetic and cell biological analyses of sperm behavior in the female reproductive tract are providing important clues to the mechanisms of sperm competition, a form of sexual selection that is an important force that shapes reproductive behavior, physiology and morphology in a wide range of species.
authors.affiliation: Department of Organismal Biology and Anatomy, The University of Chicago, 1027 East 57th Street, Chicago, Illinois 60637, USA.
authors.forename: T L
authors.initials: TL
authors.lastname: Karr
authors.forename: S
authors.initials: S
authors.lastname: Pitnick
mesh_terms: D000818:Animals; D017173:Caenorhabditis elegans / Q000235:genetics / Q000502:physiology; D012734:Disorders of Sex Development; D004331:Drosophila melanogaster / Q000235:genetics / Q000502:physiology; D005260:Female; D005306:Fertilization / Q000235:genetics / Q000502:physiology*; D008297:Male; D012098:Reproduction / Q000235:genetics / Q000502:physiology; D012641:Selection, Genetic; D013094:Spermatozoa / Q000502:physiology*