This book describes the processes of respiration, circulation, and acid-base regulation throughout the animal kingdom. Comprehensive in scope, it provides in-depth coverage of such physiological principles as physico-chemical reactions, types of exchangers, blood pigments, circulatory systems, and respiratory control systems. Five case studies illustrate these principles in invertebrates, fish, and terrestrial animals, concentrating on species that are commonly used for laboratory study. The book comes with an IBM-compatible disc which illustrates the use of computer simulation modeling and enables readers to implement measurement-unit conversions, calculate temperature-dependent parameters,and construct Hill plots and Davenport diagrams.