Asking whether we, too, are going the way of the dinosaur, this animated film looks at the history of energy sources. It illustrates the variety in common use before the present era, the transitions to new and more efficient sources which made a wider range of activities possible, and our increasing dependence on a single non-renewable source: oil.

Utilizing material from the UN Audiovisual Library, this episode features artwork by Deborah May and music by Frank Zappa.