The Handicap Principle: A Missing Piece Of Darwin's Puzzle paperback english - 01-07-1999
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| Publisher | Oxford University Press Inc |
| ISBN 13 | 9780195129144 |
| Book Subtitle | A Missing Piece Of Darwin's Puzzle |
| Book Description | Ever since Darwin, animal behaviour has intrigued and perplexed human observers. The elaborate mating rituals, lavish decorative displays, complex songs, calls, dances and many other forms of animal signalling raise fascinating questions. To what degree can animals communicate within their own species and even between species? What evolutionary purpose do such communications serve? Perhaps most importantly, what can animal signalling tell us about our own non-verbal forms of communication? In The Handicap Principle, Amotz and Ashivag Zahavi offer a unifying theory that brilliantly explains many previously baffling aspects of animal signalling and holds up a mirror in which ordinary human behaviours take on surprising new significance. The wide-ranging implications of the Zahavis' new theory make it arguably the most important advance in animal behaviour in decades. Based on 20 years of painstaking observation, the Handicap Principle illuminates an astonishing variety of signalling behaviours in animals ranging from ants and ameba to peacocks amd gazelles. Essentially, the theory asserts that for animal signals to be effective they must be reliable, and to be reliable they must impose a cost, or handicap, on the signaller. When a gazelle sights a wolf, for instance, and jumps high into the air several times before fleeing, it is signalling, in a reliable way, that it is in tip-top condition, easily able to outrun the wolf. (A human parallel occurs in children's games of tag, where faster children will often taunt their pursuer before running). By momentarily handicapping itself-expending precious time and energy in this display-the gazelle underscores the truthfulness of its signal. Such signalling, the authors suggest, serves the interests of both predator and prey, sparing each the exhaustion of a pointless chase. Similarly, the enormous cost a peacock incurs by carrying its elaborate and weighty tail-feathers, which interfere with food gathering, reliably communicates its value as a mate able to provide for its offspring. Perhaps the book's most important application of the Handicap Principle is to the evolutionary enigma of animal altruism. The authors convincingly demonstrate that when an animal acts altruistically, it handicaps itself-assumes a risk or endures a sacrifice-not primarily to benefit its kin or social group but to increase its own prestige within the group and thus signal its status as a partner or rival. Finally, the Zahavis' show how many forms of non-verbal communication among humans can also be explained by the Handicap Principle. Indeed, the authors suggest that non-verbal signals-tones of voice, facial expressions, body postures-are quite often more reliable indicators of our intentions than is language. Elegantly written, exhaustively researched, and consistently enlivened by equal measures of insight and example, The Handicap Principle illuminates virtually every kind of animal communication. It not only allows us to hear what animals are saying to each other-and to understand why they are saying it-but also to see the enormously important role non-verbal behaviour plays in human communication. |
| Editorial Review | The Zahavis write well, with admirable clarity...Very readable book-Science Books and Films "This book is highly readable yet rigorous enough for specialists. Essential for any academic collection and worthwhile for genearal collections."-Library Journal "[An] extremely well-written popularization of the authors' scientific work. Covering species as different as tigers and barn swallows, and topics as diverse as parasitism and parental care, the authors apply their theory to many aspects of animal behavior that were difficult to explain previously.... Highly recommended."-Booklist "By now the Handicap Principle is acknowledged by a growing body of biologists, and by joining their forces Amotz and Avishang Zahavi explain the principle and how it applies to communicative behaviour between organisms...from amebas to humans."-Arne Lundberg, Uppsala University, Sweden "This fascinating, provocative, insightful and controversial book will charm, inform and sometimes infuriate all of those interested in understanding animal and human communication."-Paul Ekman, Professor of Psychology, University of California, San Francisco "Among the most revolutionary and controversial concepts in modern behavioral biology is the handicap principle developed by Zahavi. After initially encountering resistance, it has been receiving increased acceptance for its success in explaining an enormous variety of animal behaviors and anatomical structures, from gazelles' seemingly suicidal displays to men's beards. Read this fine book, and discover what the excitement is all about!"-Jared M. Diamond, Professor of Physiology, University of California at Los Angeles |
| Language | English |
| Author | Amotz Zehavi, Avishag Zahavi |
| Publication Date | 01-07-1999 |
| Number of Pages | 302 |
The Handicap Principle: A Missing Piece Of Darwin's Puzzle paperback english - 01-07-1999
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