title: Paradoxical pupillary constriction in dark reared chicks.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001699:Biometry; D002645:Chickens; D003624:Darkness; D005123:Eye / Q000473:pathology; D005127:Eye Color; D008027:Light; D011680:Pupil / Q000502:physiology*; D012683:Sensory Deprivation / Q000502:physiology*; D013997:Time Factors