CichlidsPerchesAfrica, EasternLakesFish ProteinsFresh WaterNicaraguaGenetic SpeciationTerritorialityJawTilapiaOpsinsPigmentationMating Preference, AnimalPhylogenyEvolution, PlanetaryMicrospectrophotometrySocial DominanceBiological EvolutionEvolution, MolecularMalawiAfricaSpecies SpecificityColorCone Opsins