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The No.1 SUNDAY TIMES bestseller. A fascinating explanation of how evolution works, from bestselling author of THE GOD DELUSION, Richard Dawkins.
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.
Dawkins (The Selfish Gene) pictures evolution as a vast river of DNA-coded information flowing over millennia and splitting into three billion branches, of which 30 million branches--today's extant species--survive. Emphasizing that the genetic code is uncannily computer-like, comprising long strings of digital information, the eminent Oxford evolutionary biologist surmises that we are ``survival machines'' programmed to propagate the database we carry. From his perspective, nature is not cruel--only indifferent--and the goal of a presumed Divine Engineer is maximizing DNA survival. Dawkins cautiously endorses the controversial ``African Eve'' theory, according to which the most recent common ancestor of all modern humans probably lived in Africa fewer than 250,000 years ago. The author's narrative masterfully deals with controversies in evolutionary biology. Natural Science Book Club dual main selection; Library of Science alternate.