title: Is gender just a category? The two-plus sex advantage.
authors.forename: Julian L
authors.initials: JL
authors.lastname: Wong
authors.forename: Mariana F
authors.initials: MF
authors.lastname: Wolfner
mesh_terms: D000818:Animals; D005260:Female; D005783:Gender Identity; D057850:Hermaphroditic Organisms / Q000502:physiology*; D006801:Humans; D008297:Male; D012098:Reproduction / Q000502:physiology*; D012737:Sex Factors