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ISE Animal Diversity lean turnaround art byrne systematic literacy program to helpAuthor(s): Hickman, Jr., Cleveland P., Keen, Susan L., Larson, Allan, Eisenhour, David J. This text provides a concise introduction to the field of animal biology. Readers discover general principles of evolution, ecology, animal body plans and classification and systematics. 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