Berta and Sumich have succeeded yet again in creating superior marine reading! This book is a succinct yet comprehensive text devoted to the systematics, evolution, morphology, ecology, physiology, and behavior of marine mammals. The first edition, considered the leading text in the field, is required reading for all marine biologists concerned with marine mammals. Revisions include updates of citations, expansion of nearly every chapter and full color photographs. This title continues the tradition by fully expanding and updating nearly all chapters. * Comprehensive, up-to-date coverage of the biology of all marine mammals * Provides a phylogenetic framework that integrates phylogeny with behavior and ecology * Features chapter summaries, further readings, an appendix, glossary and an extensive bibliography * Exciting new color photographs and additional distribution maps.