title: Evolutionary ecology. Sex and the single killifish.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Pennisi
mesh_terms: D000818:Animals; D005075:Biological Evolution; D003445:Crustacea / Q000502:physiology; D005260:Female; D023781:Fundulidae / Q000235:genetics* / Q000502:physiology*; D014644:Genetic Variation; D057850:Hermaphroditic Organisms; D008297:Male; D018895:Microsatellite Repeats; D012098:Reproduction; D019849:Sex Determination Processes; D012726:Sexual Behavior, Animal