Variations on a Theme: Skeletal Adaptations

Year Published: 1978

Creator: British Broadcasting Corporation. Television Service.

Format: 16mm

Sound: sound

Description: Title from data sheet Made in 1978 Intended audience: High school through college Issued also as videorecording A study in the workings of natural selection, focusing on illustrations of convergence, or different animals reaching similar skeletal adaptations, and divergence, or the adaptation in related animals of different skeletal structures in response to physical forces. Includes close-ups of animals in motion and skeletal structures, and shows scientists using machines to measure forces which affect skeletal structures

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