What's New in This Edition " A new chapter on genomics, proteomics, and related disciplines (Chapter 3) " An entirely rewritten chapter on reproduction (Chapter 16) " Extensive rewriting, reorganization, or expansion of chapters on muscle plasticity in use and disuse (Chapter 20), the nervous system and sense organs (Chapters 12-14), and nutrition, feeding, and digestion (Chapter 5) " Over 80 new figures or tables " All chapters updated based on the latest literature " All figures and text revised as needed for pedagogical effectiveness " New endpaper embellishments: a two-page summary of major themes in physiology with model examples and a two-page phylogeny of the animal kingdom, emphasizing physiological features " Updated, in-depth lists of references to the scientific literature Animal Physiology presents all the branches of modern animal physiology with a strong emphasis on integration of physiological knowledge, ecology, and evolutionary biology. Integration extends from molecules to organ systems and from one physiological discipline to another. The book takes an entirely fresh approach to each topic. Its full-color illustrations include many novel, visually effective features to help students learn. Each of the 24 main chapters starts with a brief animal example to engage student interest and demonstrate the value of the material that will be learned. The book includes five additional, briefer "At Work" chapters that apply students' newfound physio