The ossicular chain in mammals.
D000717:Anatomy, Comparative; D000818:Animals; D005075:Biological Evolution; D002415:Cats; D002685:Chiroptera; D004285:Dogs; D004429:Ear Ossicles / Q000033:anatomy & histology*; D006168:Guinea Pigs; D006801:Humans; D008322:Mammals; D051379:Mice; D011817:Rabbits; D013045:Species Specificity