"This is a revised and updated edition of one of the most authoritative and comprehensive sources on the world's animals. Similar to the first edition written by noted zoologist Bernard Grzimek and published in 1972, the second edition covers all types of animals in geographic areas around the world. It includes high-quality photographs and illustrations and a comprehensive index to all volumes."--"The Top 20 Reference Titles of the Year," American Libraries, May 2004.