books.google.com.ph - 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...http://books.google.com.ph/books/about/Marine_Mammals.html?id=4sWbuL0hM1kC&utm_source=gb-gplus-shareMarine Mammals
