OpsinsRod OpsinsCone OpsinsRetinal Cone Photoreceptor CellsMicrospectrophotometryRhodopsinRetinaldehydeRetinal PigmentsVision, OcularLight Signal TransductionMolecular Sequence DataPhotoreceptor Cells, VertebrateRetinal Rod Photoreceptor CellsCompound Eye, ArthropodPhylogenyRetinaHydrozoaAmino Acid SequenceTransducinPhotoreceptor Cells, InvertebratePoeciliaCichlidsPhotoreceptor CellsColor VisionAnterior Eye SegmentG-Protein-Coupled Receptor Kinase 1Eye ProteinsRod Cell Outer SegmentDrug Inverse AgonismLightButterfliesPineal GlandEvolution, MolecularCyprinodontiformesFish ProteinsRetinal Photoreceptor Cell Outer SegmentBase SequenceCrustaceaEyeInvertebratesArthropodscis-trans-IsomerasesLizardsArrestinDark AdaptationSequence Homology, Amino AcidThyroid Hormone Receptors betaGene DuplicationUrodelaSequence AlignmentIn Situ HybridizationAmbystomaRetinitis PigmentosaCloning, MolecularFluorescent Antibody Technique, IndirectVertebratesProtein Structure, SecondaryColorElectroretinographyRetinal DegenerationArthropod ProteinsSequence Analysis, DNACattleFishesColor PerceptionDNA, ComplementarySpecies SpecificityRNA, Messenger