The Selfish Gene was dropped. The book contains no illustrations. The book has been translated into at least 23 languages including Arabic, Thai and Turkish. In 2006, a 30th-anniversary edition was published with the Trivers foreword and a new introduction by the author. It was accompanied by a "festschrift" entitled "" (2006). In March 2006, a special event entitled "The Selfish Gene": Thirty Years On was held at the London School of Economics. In March 2011, Audible Inc published an audiobook edition narrated by Richard Dawkins and Lalla Ward. In 2016, Oxford University Press published a 40th anniversary edition with a new epilogue,
Alternatives to evolution by natural selection through a population when they were beneficial, helped by natural selection. This represented the germ of the modern synthesis, and the beginning of the end for mutationism as an evolutionary force. Contemporary biologists accept that mutation and selection both play roles in evolution; the mainstream view is that while mutation supplies material for selection in the form of variation, all non-random outcomes are caused by natural selection. Masatoshi Nei argues instead that the production of more efficient genotypes by mutation is fundamental for evolution, and that evolution is often mutation-limited. The endosymbiotic theory implies rare but major events of saltational