The Handicap Principle: A Missing Piece of Darwin's Puzzle

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9780195129144: The Handicap Principle: A Missing Piece of Darwin's Puzzle

Ever since Darwin, animal behavior has intrigued and perplexed human observers. The elaborate mating rituals, lavish decorative displays, complex songs, calls, dances and many other forms of animal signaling 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 signaling 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 signaling and holds up a mirror in which ordinary human behaviors take on surprising new significance.
The wide-ranging implications of the Zahavis' new theory make it arguably the most important advance in animal behavior in decades. Based on 20 years of painstaking observation, the Handicap Principle illuminates an astonishing variety of signaling behaviors in animals ranging from ants and ameba to peacocks and 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 signaler. When a gazelle sights a wolf, for instance, and jumps high into the air several times before fleeing, it is signaling, 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 signaling, 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 behavior plays in human communication.

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About the Author:

Amotz Zahavi is at Tel-Aviv University. Avishag Zahavi is at Volcani Center, Beit Dagon.

Language Notes:

Text: English (translation)
Original Language: Hebrew

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1.

Amotz Zehavi, Avishag Zahavi
Editorial: Oxford University Press Inc, United States (1999)
ISBN 10: 0195129148 ISBN 13: 9780195129144
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Descripción Oxford University Press Inc, United States, 1999. Paperback. Estado de conservación: New. Revised ed.. Language: English . Brand New Book ***** Print on Demand *****.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. Nº de ref. de la librería AAV9780195129144

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Zahavi, Amotz
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Descripción Oxford University Press 1999-06, 1999. Estado de conservación: New. This item is printed on demand. Brand new book, sourced directly from publisher. Dispatch time is 24-48 hours from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely. Nº de ref. de la librería NU-LSI-06896725

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Amotz Zehavi, Avishag Zahavi
Editorial: Oxford University Press Inc, United States (1999)
ISBN 10: 0195129148 ISBN 13: 9780195129144
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Descripción Oxford University Press Inc, United States, 1999. Paperback. Estado de conservación: New. Revised ed.. Language: English . Brand New Book ***** Print on Demand *****. 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. Nº de ref. de la librería AAV9780195129144

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Zahavi, Amotz
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Amotz Zahavi (Author), Avishag Zahavi (Author), Amir Balaban (Illustrator), Na'ama Ely (Contributor), Melvin Patrick Ely (Contributor)
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Descripción Oxford University Press, Book. Paperback. Estado de conservación: New. In Stock , Brand New , Usually Dispatched within 1-2 Business Days , Safe Packing : Shrink Wrap + Bubble Wrap for more safety , Shipping Service : Priority ( Expedite ) Shipping : Ships By Courier Company Like DHL , TNT , FedEx , . Free Tracking Number for Priority ( Expedite ) Shipping Service , Please Note : Courier Company does not generally deliver to PO Boxes or APO addresses , Standard Shipping Services : Ships By airmail , Excellent Customer Services , Customer Satisfaction Guaranteed , Ships from UK Warehouse or Maybe from Our Overseas Warehouse ( UAE Warehouse or Iran Warehouse ) , without any changes in Shipping Rates. Nº de ref. de la librería 0195129148(1L2059)

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Amotz Zahavi; Avishag Zahavi
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Amotz Zahavi, Avishag Zahavi, Amir Balaban (Illustrator), Na'ama Ely (Contributor), Melvin Patrick Ely (Contributor)
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Descripción Oxford University Press, USA, 1999. Paperback. Estado de conservación: New. Nº de ref. de la librería DADAX0195129148

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Amotz Zehavi, Avishag Zahavi
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Descripción Oxford University Press Inc, United States, 1999. Paperback. Estado de conservación: New. Revised ed.. Language: English . This book usually ship within 10-15 business days and we will endeavor to dispatch orders quicker than this where possible. Brand New Book. 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. Nº de ref. de la librería BTE9780195129144

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Zahavi, Amotz, Zahavi, Avishag
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Descripción Oxford University Press, 2017. Paperback. Estado de conservación: New. Never used! This item is printed on demand. Nº de ref. de la librería P110195129148

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