The study of animal behaviour is a dynamic and vibrant field in contemporary psychology schools which has seen rapid growth and diversification throughout the last century. It forms a major area of study and research not only in cognitive, experimental and behavioural psychology, but also in neurobiology, evolutionary biology and evolutionary psychology. In this timely and comprehensive four-volume collection, two internationally renowned scholars bring together every seminal paper of the last century, from the canonical to the critical and contemporary. Conceptually arranged to address the four formative questions posed by Niko Tinbergen in 1963, Volume One addresses causation and the mechanisms of animal behaviour; Volume Two presents the foremost research in the development of animal behaviour; Volume Three covers behavioural ecology and the function of animal behaviour, and Volume Four addresses research that attempts to reconstruct the evolutionary history of behaviour.