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Emphasizing the central role of evolution in generating diversity, this best-selling text describes animal life and the fascinating adaptations that enable animals to inhabit so many ecological niches. Featuring high quality illustrations and photographs set within an engaging narrative, Integrated Principles of Zoology is considered the standard by which other texts are measured. With its comprehensive coverage of biological and zoological principles, mechanisms of evolution, diversity, physiology, and ecology, organized into five parts for easy access, this text is suitable for one- or two-semester introductory courses.

PART ONE
Introduction to Living Animals
1 Life: Biological Principles and the Science of Zoology
2 The Origin and Chemistry of Life
3 Cells as Units of Life
4 Cellular Metabolism
PART TWO
Continuity and Evolution of Animal Life
5 Genetics: A Review
6 Organic Evolution
7 The Reproductive Process
8 Principles of Development
PART THREE
Diversity of Animal Life
9 Architectural Pattern of an Animal
10 Taxonomy and Phylogeny of Animals
11 Unicellular Eukaryotes
12 Sponges and Placozoans
13 Radiate Animals
14 Acoelomorpha, Platyzoa, and Mesozoa
15 Polyzoa and Kryptrochozoa
16 Molluscs
17 Annelids and Allied Taxa
18 Smaller Ecdysozoans
19 Trilobites, Chelicerates, and Myriapods
20 Crustaceans
21 Hexapods
22 Chaetognaths, Echinoderms, and Hemichordates
23 Chordates
24 Fishes
25 Early Tetrapods and Modern Amphibians
26 Amniote Origins and Nonavian Reptiles
27 Birds
28 Mammals
PART FOUR
Activity of Life
29 Support, Protection, and Movement
30 Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation
31 Homeostasis: Internal Fluids and Respiration
32 Digestion and Nutrition
33 Nervous Coordination: Nervous System and Sense Organs
34 Chemical Coordination: Endocrine System
35 Immunity
36 Animal Behavior
PART FIVE
Animals and Their Environments
37 Animal Distributions
38 Animal Ecology
Glossary
Credits
Index