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Publisher's Synopsis The river of Dawkins's title is a river of DNA flowing through time from the beginning of life on earth to the present - and onwards. Dawkins explains that DNA must be thought of as the most sophisticated information system imaginable: ?Life is just bytes and bytes of information' he writes. Using this perspective he describes the mechanisms by which evolution has taken place gradually but inexorably over a period of three thousand million years. It is the story of how evolution happens rather than a narrative of what has actually happened in evolution. He discusses current views on the process of human evolution including the idea that we all trace back to a comparatively recent African ?Eve' and speculates that the ?information explosion' that was unleashed on Earth when DNA came into being has almost certainly happened in other places in the universe.