Animals With Backbones

Duration:

Year Published: 1957

Complete Record: Distinguishes vertebrates from non-vertebrates and shows representative examples of the five common classes of vertebrates-fish, amphibian, reptiles, birds, and mammals. Uses drawings to show the location of the backbone of a horse. Pictures several non-vertebrates and explains that they have no backbone. By drawings, depicts the bone structure of a horse, fish, frog. snake, and bird.