A Closer Look at Apes

by Professor David Cook

Published 1 January 1976
Describes the characteristics of the ape family which includes the gibbon, orang-utan, gorilla, and chimpanzee.

A Closer Look at Dogs

by Professor David Cook

Published 31 December 1975
Discusses dogs and their place in the order Carnivora, compares them with wolves on many points, and considers their uses today.

Discusses the characteristics of the world's "big cats:" lions, tigers, leopards, snow leopards, and jaguars.