Walker's Marine Mammals of the World

摘要: From the giant bottlenosed whale and West Indian manatee to crabeater seal hourglass dolphin, from pygmy sperm spotted-necked otter, marine mammals are among most fascinating - watched of Earth's many animal species. Some, such as dolphins, known for their intelligence, friendliness toward humans sophisticated social behaviour. In addition, all these animals sources fascination special adaptations they have undergone life in around water, unique methods communication ("whale song") endangered status Ronald M. Nowak offers a comprehensive guide this varied order mammals. The book includes scientific common names, number distribution species, measurements physical traits, habitat, daily seasonal activity, population dynamics, home range, life, reproduction, longevity threatened A foreword by John E. Heyning is written general reader, while more detailed substantive introduction Randall R. Reeves Brent S. Stewart discusses issues greater depth specialist. Illustrated with than 140 black-and-white photographs, aimed at mammal experts enthusiasts alike.