the previous editions, the authors explain the latest theoretical ideas using examples from micro-organisms, invertebrates and vertebrates. There are boxed sections for some topics and marginal notes help guide the reader. The book is essential reading for students of behavioural ecology, animal behaviour and evolutionary biology. Key Features: * Long-awaited new edition of a field-defining textbook * New chapters, illustrations and colour photographs * New co-author * Focuses on the influence of natural selection on behavior, and how animal societies reflect both cooperation and conflict among individuals Visit www.wiley.com/go/davies/behaviouralecology to access the artwork from the book. "The long-awaited update to a classic in this field is now here, presenting new direc­tions in thinking and addressing burning questions. Richly informed by progress in many other disciplines, such as sensory physiology, genetics and evolutionary theory, it marks the emergence of behav­ioural ecology as a fully fledged discipline..... This is a marvellous book, written in a lucid style. A must-read for those in the field, it is also a cornucopia of new thinking for anyone interested in evolution and behaviour." Manfred Milinski, Nature, 2012