"Hemo The Magnificent" is an old educational film with animation produced by Shamus Culhane Productions. Though Culhane had probably little to no creative input as the animation was directed by Bill Hurtz. It features the voices of Mel Blanc, June Foray, Marvin Miller, and even an on screen appearance by Sterling Holloway. Here's the introductory scene from "Hemo". I have to say I love the background used in the first animated scenes.