CourtshipSexual Behavior, AnimalCannibalismSex AttractantsMating Preference, AnimalVocalization, AnimalInseminationSpidersAnimal CommunicationEjaculationDrosophila melanogasterGenitalia, MaleReproductionGibraltarSperm TransportCopulationFertilityCompetitive BehaviorTephritidaeGryllidaePreoptic AreaDrosophila ProteinsPregnanediolSex CharacteristicsPoeciliaGenitalia, FemaleHydrocarbonsDrosophilaOvipositionPanstrongylusConsummatory BehaviorCamelids, New WorldPapio hamadryasAnimals, Genetically ModifiedPheromonesPenisPaternityPasseriformesBiological EvolutionSpermatozoaCyprinodontiformesAnimal StructuresWeevilsBody SizeSingingGenes, InsectBeetlesBehavior, AnimalWingBedbugsAggressionChiropteraNeuroendocrinologyTriatominaeSongbirdsPair BondPupaBirdsWaspsSympatrySperm CountClitorisCloacaSocial BehaviorSense OrgansGanglia, InvertebrateSpecies SpecificityAgonistic BehaviorTime FactorsSocial DominanceGroomingTestosteroneAcousticsConflict (Psychology)Memory, Long-TermSound SpectrographyEstrusDisorders of Sex DevelopmentSemenGenitaliaCichlidsStarlings