دانلود کتاب Walker's Mammals of the World

From aardwolves and bandicoots to yapoks and zorillas, Ernest P. Walker's Mammals of the World is the most comprehensive--the preeminent--reference work on mammals. Now, completely revised and updated, this fascinating guide is better than ever--covering more than 1,000 genera of mammals, including nearly one hundred that did nor appear in previous editions, and describing more than 4,000 different species.The newest Walker's Mammals offers, for the first time in a single publication, a complete account of world mammals in all of historical time--that is, since about 3,000 B.C. Another new feature is that species are arranged within each genus in the order of simple to more advanced life forms, so that species are shown in their closest relation to one another. No other work contains illustrations--more than 1,700--of virtually every genus of mammals. Included are pictures by such noted wildlife photographers as Leonard Lee Rue III, Bernhard Grzimek, David Pye, and Warren T. Houck. Many new photographs of rarely seen animals have been added and, as in previous editions, most photographic illustrations are of live animals rather than of skins or skeletons.Each section of the book describes one genus and includes facts such as scientific and common names, the number and distribution of species, measurements and physical traits, habitat, locomotion, daily and seasonal activity, population dynamics, home range, social life, reproduction, and longevity. Textual summaries present accurate, well-documented descriptions of the physical characteristics and living habits of mammals in every part of the world. Endangered species and those having singular economic importance are given particular attention, and the names and ranges of all the species within a given genus are listed at the beginning of each entry.Since its publication in 1964, Walker's Mammals of the World has become a favorite guide to the natural world for general readers and an invaluable resource for professionals. This fifth edition represents more than half a century of scholarship--Ernest P. Walker himself devoted more than thirty years to the original project--and remains true to Walker's vision, smoothly combining thorough scholarship with a popular, readable style to preserve and enhance what the Washington Post called "a landmark of zoological literature."