Description The 12th edition of Zoology continues to offer students an introductory general zoology text that is manageable in size and adaptable to a variety of course formats. It is a principles-oriented text written for the non-majors or the combined course, presented at the freshman and sophomore level. Table of Contents 1 Zoology: An Evolutionary and Ecological Perspective 2 The Structure and Function of Animal Cells 3 Cell Division and Inheritance 4 Evolution: History and Evidence 5 Evolution and Gene Frequencies 6 Ecology: Preserving the Animal Kingdom 7 Animal Taxonomy, Phylogeny, and Organization 8 Animal Origins and Phylogenetic Highlights 9 The Basal Animal Phyla 10 The Smaller Lophotrochozoan Phyla 11 Molluscan Success 12 Annelida: The Metameric Body Form 13 The Smaller Ecdysozoan Phyla 14 The Arthropods: Blueprint for Success 15 The Mandibulata: Pancrustacea and Myriapoda 16 Ambulacraria: Echinoderms and Hemichordates 17 Chordata: Urochordata and Cephalochordata 18 The Fishes: Vertebrate Success in Water 19 Amphibians: The First Terrestrial Vertebrates 20 Nonavian Reptiles: Diapsid Amniotes 21 Birds: The Avian Reptiles 22 Mammals: Synapsid Amniotes 23 Protection, Support, and Movement 24 Communication I: Nervous and Sensory Systems 25 Communication II: The Endocrine System and Chemical Messengers 26 Transport and Exchange in Animals 27 Nutrition and Digestion 28 Temperature and Body Fluid Regulation 29 Reproduction and Development