Bilateral atavistic polydactyly in a colt and its dam.
D000818:Animals; D005260:Female; D005552:Forelimb / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006734:Horse Diseases / Q000151:congenital* / Q000000981:diagnostic imaging / Q000235:genetics; D006736:Horses; D008297:Male; D011859:Radiography