1 Zoology: An Ecological and Evolutionary Perspective

2 Cells, Tissues, Organs, and Organ Systems of Animals

3 Cell Division and Inheritance

4 Evolution: History and Evidence

5 Evolution and Gene Frequencies

6 Ecology: Preserving the Animal Kingdom

Part Two Animal-Like Protists and Animalia

7 Animal Classification, Phylogeny, and Organization

8 Animal-like Protists: The Protozoa

9 Multicellular and Tissue Levels of Organization

10 The Triploblastic, Acoelomate Body Plan

11 The Pseudocoelomate Body Plan: Aschelminths

12 Molluscan Success

13 Annelida: The Metameric Body Form

14 The Arthropods: Blueprint for Success

15 The Hexapods and Myriapods: Terrestrial Triumphs

16 The Echinoderms

17 Hemichordata and Invertebrate Chordates

18 The Fishes: Vertebrate Success in Water

19 Amphibians: The First Terrestrial Vertebrates

20 Reptiles: The First Amniotes

21 Birds: Feathers, Flight, and Endothermy

22 Mammals: Specialized Teeth, Hair Endothermy, and Viviparity

Part Three Form and Function: A Comparative Perspective

23 Protection, Support, and Movement

24 Communication I: Nervous and Sensory Systems

25 Communication II: The Endocrine System and Chemical Messengers

26 Circulation and Gas Exchange

27 Nutrition and Digestion

28 Temperature and Body Fluid Regulation

29 Reproduction and Development

30 The Chemical Basis of Animal Life

31 Energy and Enzymes: Life's Driving and Controlling Forces

32 How Animals Harvest Energy Stored in Nutrients

33 Embryology

34 Animal Behavior