DarknessLightCircadian RhythmDark AdaptationPhotoperiodPhotoreceptor CellsChronobiology DisordersPineal GlandSuprachiasmatic NucleusLightingReflex, Vestibulo-OcularAdaptation, OcularCavesMelatoninPerchesPhytochromeBiological ClocksPeriod Circadian ProteinsRetinaNystagmus, PhysiologicPhotic StimulationChlorophyllDiuronVision, OcularRetinal Rod Photoreceptor CellsEye MovementsVestibule, LabyrinthHypocotylActivity CyclesCryptochromesRetinal Cone Photoreceptor CellsRotationArabidopsisReflex, PupillaryPhotosynthesisOcular Physiological PhenomenaPlant LeavesPhotophobiaCircadian ClocksHead MovementsPhytochrome AArabidopsis ProteinsGene Expression Regulation, PlantEcotypePupilUrodelaOrientationRod Cell Outer SegmentHypocreaCharacidaePeriodicityAmbystomaAdaptation, PhysiologicalSeedlingPhotobiologyLight Signal TransductionPerciformesARNTL Transcription FactorsTime FactorsOtolithic MembraneArylalkylamine N-AcetyltransferaseMotor ActivityGravity SensingCLOCK ProteinsBufo marinusPhytochrome BGravitationGerminationPlant ProteinsAccelerationRetinal PigmentsNystagmus, PathologicTupaiaRhodopsinSaccadesPhotoreceptor Cells, VertebrateMoonPlants, Genetically ModifiedPhotoreceptor Cells, InvertebrateAntarctic RegionsChloroplastsDistance PerceptionPhotosynthetic Reaction Center Complex ProteinsElectroretinographyArctic RegionsFixation, OcularMethylphenazonium MethosulfateGoldfishOctodonCyanobacteriaGenes, PlantPhototropinsSpace PerceptionFlavoproteinsElectrooculographyPhotosystem II Protein ComplexCarpsEyeColorRhodospirillum rubrum