This text provides a concise introduction to the field of animal biology. Readers discover general principles of evolution, ecology, classification, systematics, and animal body plans. After these introductory chapters, readers delve into the biology of all groups of animals. The basic features of each group are discussed, along with evolutionary relationships among group members. Chapter highlights include newly discovered features of animals as they relate to ecology, conservation biology, and value to human society. Regular updates to the phylogenies within the book keep it current.

Cleve Hickman is Professor Emeritus at Washington and Lee University, Lexington, VA. He received his Ph.D. in Zoology from the University of British Columbia, did research in animal physiology for eight years, and taught zoology for over 30 years. He's made over 20 trips to the Galapagos Islands for research and as an instructor for student field trips.