by Jay Moody

Created on: December 12, 2010

Dawkins, Richard (2006) The Selfish Gene, 30th Anniversary edition, New York: Oxford University Press

      The Selfish Gene by Richard Dawkins is a remarkable and engaging journey through evolutionary theory.  Dawkins’ “selfish gene theory” challenges what he considers common and incorrect notions that the “important thing in evolution is the good of the species.”  Dawkins asserts that evolution is in fact a survival and replication strategy of the gene.  Written most especially for the layperson, Dawkins’ prose abandons much of the technical jargon of science and replaces it with an informal and metaphorical language designed to be read with the same enthusiasm and comfort as science-fiction.

Setting the backdrop for the “selfish gene” theory, the first four chapters cover basic molecular and biological science as Dawkins postulates the possible chemical origins of life and the gene.  Once the gene-centered concept of evolution is thoroughly introduced, Dawkins changes gears and begins to discuss the influence natural selection may have on animal behavior.  This is the basis for the selfish gene theory in which he asserts that the pressures of natural selection which favor the most survivable genes are a catalyst for the evolution of the selfish gene which in turn produces certain behaviors in the individual.  Dawkins says that the individual body of an organism is a “survival machine” created by its genes throughout millions of often violent evolutionary years.  The primary purpose of this survival machine is to provide a protective environment where genes can more efficiently survive and replicate themselves.  Dawkins argues that because these survival machines are essentially programmed with the information carried in their genes, the drive to survive and replicate is thus manifest in a myriad of selfish behavioral characteristics.  In short, the theory states that genes and therefore the species in which they reside evolve behaviors that cause them to act selfishly for their own benefit.  Natural selection favors selfishness.

Altruism represents a possible contradiction to the selfish gene theory, so Dawkins spends much of the early portion of the book addressing this idea. Altruism is a behavior in which an individual acts in a manner that benefits its kin group at the possible expense or sacrifice of its own life. 

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