# Variations on a Theme: Skeletal Adaptations

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

- Kind: Educational
- Year: 1978
- By: British Broadcasting Corporation. Television Service, Open University, Media Guild
- Genres: Education, Science, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/variationsonathemeskeletaladaptations)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/variationsonathemeskeletaladaptations?play=1)