Extinct

Examines the most famous and unusual extinct and endangered amphibians, discussing how certain ones became extinct.

Features the most famous and unusual extinct or endangered underwater plants and animals, explaining when and how certain ones became extinct.

Discusses the physical characteristics of several endangered, extinct, and prehistoric species of insects.

Surveys some of the land mammals that became extinct naturally, long ago, and their present-day descendants who are threatened with extinction by man and his activities.