Discusses the production of phenotypes and the importance of interactions in altering selection coefficients, and describes the hypotheses which emphasise the feedback relationships between modifications in animal behaviour and their subsequent evolution. Various theories regarding the role of behaviour in evolution are reviewed, and there are summaries of the work of Lamarck, Darwin, Baldwin,
... [Show full abstract] Osborn and Morgan together with more recent ideas of synthesis and sociobiology. The ontogeny of behaviour is described as is the active roles of the behaviour of animals in evolution, in particular active choice in social situations. Group effects above and below (molecular drive) the level of the individual are described. -S.J.Yates