Principles of Animal Physiology, Second Edition continues to set a new standard for animal physiology books with its focus on animal diversity, its clear foundation in molecular and cell biology, its concrete examples throughout, and its fully integrated coverage of the endocrine system. The book includes the most up-to-date research on animal genetics and genomics, methods and models, and offers a diverse range of vertebrate and invertebrate examples. The Cellular Basis of Animal Physiology: Introduction to Physiological Principles, Chemistry, Biochemistry, and Cell Physiology, Hormones and Cell Signaling, Neuron Structure and Function, Cellular Movement and Muscles. Integrating Physiological Systems: Sensory Systems, Functional Organization of Nervous Systems, Circulatory Systems, Respiratory Systems, Ion and Water Balance, Digestion, Locomotion, Thermal Physiology, Reproduction.