By John Maynard-Smith
Why are animal signs trustworthy? this is often the critical challenge for evolutionary biologists drawn to indications. after all, now not all indications are trustworthy; yet such a lot are, differently receivers of indications might forget about them. a couple of theoretical solutions were proposed and empirical reviews made, yet there nonetheless is still a large amount of confusion. The authors, one a theoretician the opposite a fieldworker, introduce a feeling of order to this chaos. an important explanation for confusion has been the tendency for various researchers to exploit both an identical time period with assorted meanings, or assorted phrases with an identical that means. The authors try and make clear those variations. A moment reason behind confusion has arisen simply because many biologists proceed to imagine that there's just one right reason behind sign reliability. The authors argue that the reliability of indications is maintained in numerous methods, suitable in numerous conditions, and that biologists needs to discover ways to distinguish among them. during this ebook they clarify different theories, provide examples of signalling structures to which one or one other thought applies, and element to the various parts the place additional paintings, either theoretical and empirical, is required.
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