Il fenotipo esteso. Il gene come unità di selezione

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In The Selfish Gene, Richard Dawkins crystallized the gene's eye view of evolution developed by W.D. Hamilton and others. The book provoked widespread and heated debate. Written in part as a response, The Extended Phenotype gave a deeper clarification of the central concept of the gene as the unit of selection; but it did much more besides. In it, Dawkins extended the gene's eye view to argue that the genes that sit within an organism have aninfluence that reaches out beyond the visible traits in that body - the phenotype - to the wider environment, which can include other individuals.