"In cooperation with the American Zoo and Aquarium Association."
Includes bibliographical references
2nd ed
v. 1. Lower metazoans and lesser deuterostomes / Neil Schlager, editor -- v. 2. Protostomes / Neil Schlager, editor -- v. 3. Insects / Neil Schlager, editor -- v. 4-5. Fishes I-II / Neil Schlager -- v. 6. Amphibians / Neil Schlager, editor -- Reptiles / Neil Schlager, editor -- v. 8-11. Birds I-IV / Donna Olendorf, project editor -- v. 21-61. Mammals I-V -- v. 71. Cumulative index