title: Congenital unilateral aotus in a black rhinoceros diceros bicornis bicornis (Linn., 1758).
mesh_terms: D000828:Animal Population Groups / Q000033:anatomy & histology*; D000818:Animals; D000835:Animals, Wild / Q000033:anatomy & histology*; D004431:Ear, External / Q000002:abnormalities*; D008297:Male; D008322:Mammals; D013019:South Africa