Dark adaptation in the american red squirrel (Tamiosciurus hudsonicus).
D000818:Animals; D003118:Color Perception; D003216:Conditioning, Operant; D003623:Dark Adaptation; D004056:Differential Threshold; D006801:Humans; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology; D012054:Reinforcement, Psychology; D012160:Retina / Q000502:physiology*; D012589:Sciuridae / Q000502:physiology*; D013045:Species Specificity; D014785:Vision, Ocular