Color vision.
D000818:Animals; D001522:Behavior, Animal; D003118:Color Perception; D003117:Color Vision Defects; D003124:Colorimetry; D004193:Discrimination Learning; D004596:Electroretinography; D005829:Geniculate Bodies / Q000502:physiology; D000882:Haplorhini; D006801:Humans; D007313:Insecta; D008027:Light; D008029:Lighting; D008251:Macaca; D008568:Memory; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology; D012168:Retinal Pigments / Q000502:physiology; D013053:Spectrophotometry
D012168:Retinal Pigments