🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsTiếng ViệtРусскийالعربيةفارسی中文日本語EntityQ4584563· pop 13· linked from 178 articlesmating systemsystem of sexual reproduction in a populationAvailable in 13 languagesEspañol中文日本語РусскийPortuguêsالعربيةEstonianNorwegianNorwegian NynorsksimpleTiếng ViệtConnectionsVertebrataEntitypolygynous marriageEntityCategoriesEcologyEthologyFertilityHeterosexualityMating systemsSexual selectionSociobiology