Now in its 4th Edition, revisions include 250 updated range maps, and new classification information National Geographic is reissuing the Field Guide to the Birds of North America in the 4th edition, focusing on its accuracy and easy use in the field. This is the ultimate birders field guide - sturdy, easy to carry and use, and featuring the most complete information among bird guides. It features all species known to breed in North America, including those that are regular visitors to our continent or that drop in occasionally - more than 800 in all. The edition is lavishly illustrated with specially commissioned full-colour illustrations, plus newly updated range maps and detailed descriptions. A superb new index allows birders in the field to quickly identify a species.

    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 givenparticular 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."

    His endearing story describes the special relationship between man and wild animal, and of his own survival alone in a perilous and unforgiving wilderness. But foremost, The Ghost Walker is a story of a patient and dedicated pursuit to understand the elusive puma and its place in the environment.

    In time they came to regard them as old and familiar friends and real individuals. The Marsh Lions were the most successful group to be filmed for Big Cat Diary, the BBC’s hugely successful TV series presented by Jonathan Scott.

    Hundreds of plants and animals that inhabit the rocky shores, sandy beaches, and quiet bays and estuaries are described and illustrated with encyclopedic thoroughness.Two hundred and ninety-nine color illustrations and nearly 400 black-and-white photographs and line drawings show sponges, molluscs, crustaceans, comb jellies, flatworms, seaweeds, and many other kinds of seashore life, making for easy identification. The text, cross-referenced with figures and plates, describes in precise terms the size, color, activities, and peculiarities of the plants and animals most likely to be encountered.This book is a greatly expanded version of the author's popular Seashore Life of Puget Sound, the Strait of Georgia, and the San Juan Archipelago, published in 1973. It includes much new material on marine life along the open coast and in coastal bays, and extends the coverage to Oregon and northern California. Years of additional study make this the definitive work on the common seashore life of the northern Pacific coast.Kozloff discusses the geology and geography of the area, and gives the reader "some instant zoology and botany" with which to make the most of seashore exploration. He presents more than 650 species of plants and animals, each in its individual habitat, in chapters dealing with "Floating Docks and Pilings," "Rocky Shores of the Puget Sound Region," "Rocky Shores of the Open Coast," "Sandy Beaches," and "Quiet Bays and Salt Marshes." He also explains the laws and customs governing the collection of biological material and how animals respond to changes in their environment. Clearly and convincingly, he communicates pleasure in, and respect for, diverse marine habitats.This book is not only for the use of professional biologists and students; it will add to the pleasure of all who visit the Pacific seashores, ranging from secluded inlets in the San Juan Islands to the magnificent rocky outer coast and tidal estuary of San Francisco Bay.