Book OrnamentationPigmentationMating Preference, AnimalComb and WattlesSexual Behavior, AnimalPoeciliaAnimal CommunicationGalliformesTrinidad and TobagoSex CharacteristicsFeathersPair BondSongbirdsColorBiological EvolutionSemicircular DuctsReproductionChitosanMicroscopy, Electron, ScanningCarotenoidsPhylogenyModels, BiologicalSperm TailSpermatozoaSperm MidpieceLenses, IntraocularForeign BodiesMusic