When this classic work was first published in 1975, it created a new discipline and started a tumultuous round in the age-old nature versus nurture debate. Although voted by officers and fellows of the international Animal Behavior Society the most important book on animal behavior of all time, Sociobiology is probably more widely known as the object of bitter attacks by social scientists and other scholars who opposed its claim that human social behavior, indeed human nature, has a biological foundation. The controversy surrounding the publication of the book reverberates to the present day.In the introduction to this Twenty-Fifth Anniversary Edition, Edward O. Wilson shows how research in human genetics and neuroscience has strengthened the case for a biological understanding of human nature. Human sociobiology, now often called evolutionary psychology, has in the last quarter of a century emerged as its own field of study, drawing on theory and data from both biology and the social sciences.For its still fresh and beautifully illustrated descriptions of animal societies, and its importance as a crucial step forward in the understanding of human beings, this anniversary edition of Sociobiology: The New Synthesis will be welcomed by a new generation of students and scholars in all branches of learning.

    

    Birds play a prominent role in attracting visitors, too. The shimmering quetzals, gaudy macaws, and comical toucans only begin to hint at the impressive avian diversity to be found throughout this small country."--from the Introduction This is the one field guide the novice or experienced birder needs to identify birds in the field in the diverse habitats found in Costa Rica. It features descriptions and illustrations of more than 820 resident and neotropical migrant species found in Costa Rica, all in a compact, portable, user-friendly design. The detailed full-color illustrations show identifying features--including plumage differences among males, females, and juveniles--and views of birds in flight wherever pertinent. Additional features of this all-new guide include: o 166 original color plates depicting more than 820 species. o Concise text that describes key field marks for positive identification, as well as habitat, behavior, and vocalizations. o Range maps and texts arranged on opposing pages from illustrations for quick, easy reference. o The most up-to-date bird list for Costa Rica. o A visual guide to the anatomical features of birds with accompanying explanatory text. o Quick reference to vultures and raptors in flight.

    Naturalists Kenn Kaufman and Eric R. Eaton use a broad ecological approach rather than overly technical terms, making the book accessible and easy to use. Their lively and engaging text emphasizes the insects that are most likely to draw attention and also includes helpful details on a wide array of lesser-known but recognizable groups. The guide is lavishly illustrated, with more than 2,350 digitally enhanced photographs representing every major group of insects found in North America north of Mexico.

    Tracing the evolution of equines, this guide also explains the difference between horses and ponies, looks at how different breeds evolved or were selectively developed, and examines equine anatomy and behavior. Packed with 250 vivid full-color photographs of more than 100 horse-breeds, it uses a systematic approach from Dorling Kindersley and the Smithsonian Institution to train readers of all experience levels to identify and appreciate the wide variety of horses in the world.A visual identity key helps you recognize different horse breeds, and guides you to the correct entry based on what you see and observe. Each entry combines a concise description with annotated photographs to highlight the main characteristics and distinguishing features of the breed, with details on coloring, country or region of origin, breed history, and how the breed has been used in the human world. A concise glossary provides instant interpretation of equine terms.The clear visuals and distinctive facts are accompanied by expert prose from author Elwyn Hartley Edwards, former editor of Riding magazine and former consulting editor to Horse and Hound. The book is a clear, concise, comprehensive, and indispensable identification guide for beginners and established equine enthusiasts alike.