Children of the ark;

Briefly describes the circumstances that brought the extinction of several animals native to the United States; then examines the present threatened state of rare mammals, birds, and reptiles now found almost exclusively in zoos or in the protective surroundings of game preserves around the world. Includes the bontebok, Przewalski's horse, white rhinoceros, anoa, whooping crane, Komodo dragon, giant panda, and many others.