Earthworm: Anatomy and Dissection/ Earthworm Anatomy/ Fox and the Rooster (3 films)

Duration: 396 396 396

Year Published: 196119611951

Creator: Coronet Indiana University Encyclopaedia Britannica

Complete Record: 1) Shows by means of close-up photography, photomicrography, and diagrams techniques for dissecting a preserved earthworm and aspects of its anatomy. Points out the exterior features of the earthworm’s anatomy and then examines these systems as dissection proceeds: the digestive, the circulatory, and the excretory. Illustrates the exchange of sperm between two earthworms and the resulting cocoons. Mentions the earthworm’s sensitivity to light and to vibrations. 2) Uses live and freshly anesthetized earthworms to point out external features, action of the muscular system, the internal organs, and the reproductive process. The five aortic arches are seen in action and the process of digestion is followed as each organ is discussed. Cross fertilization is studied through dissection of two earthworms in the mating position and reference is made to development of fertilized eggs inside the cocoons. Using cinephotomicrography and extreme close-ups, the excretory and nervous system are studied. suggestions are made for further study using prepared slides, discovery of parasites in earthworms, and the comparison of earthworm anatomy with that of the crayfish and the frog. 3) Presents an adaptation of one of Aesop’s Fables, using real animals in all the roles. Tells of a fox’s attempt to persuade a rooster to come off his roost so that the fox can eat him. Through the help of many friends, such as the owl, the frog, a DOG, a skunk, the rooster is able to escape the fox. Also shots of goat who is not afraid of fox; mother opposum with babies on her back climbs fence where rooster is perched; farmer's collie DOG joins the story. Rooster flies into tree next to owl. Story narrated by owl.