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Summary: Information transmission from genes to memes
Review: Readers cruising through the wealth of books on evolution that have appeared in recent years will see one name [after Darwin] appearing almost universally. Either found in the text or the Bibliography, the name of John Maynard Smith stands ubiquitous. There's a good reason for such respect - Maynard Smith is both a capable scientist and strong presenter of science. This book, brief as it is, stands out as a prime example of his skilled writing hand. His collaborator, Eors Szathmary an Hungarian chemist, has clearly provided a wealth of resource information on many aspects of how life's mechanisms determined the path of evolution of early life. This is their second association, and it's a splendid result of the merger of two disciplines.This work, like their previous book, puts to rest the idea that evolution by natural selection is a 'group' or species phenomenon. Evolution works at individual levels. An animal, cell or even a gene - how it operates, survives and replicates. For all these elements to function successfully and pass their behaviours on to succeeding generations, a wealth of mechanisms must occur without serious hitch. Maynard Smith and Szathmary take us through these biological steps with unsurpassed clarity. Yet with all this wealth of detail, the reader finds nothing obscure or confusing in their descriptions. This book starts with descriptions of attempts to understand how life started. Now that it is understand that life's history is but a bit less than the existence of our planet, the beginnings of life must be a chemical phenomenon. Maynard Smith and Szathmary show how these reactions occurred and how they originated the steps leading to the complex life forms sharing the globe with us today. If their text wasn't clear enough [and it definitely is that] the accompanying line drawings spell out graphically how chemistry drove, and is driving, life's forces. Those seeking a wealth of information on various species will be disappointed. What this pair superbly depict are the mechanisms uniform over all life. Discussions of evolution cannot avoid addressing that creature who considers all life to have been created to ultimately produce it - the human being. The pair depart from their basic concept here by addressing human society. And rightly so. The ability of humans to modify their environment utilize powers that overcome the chemical basis by which we live. This ability rests on the use of language to convey ideas. No other animal possesses this capacity and the authors conclude this work with some ideas about the future course of human evolution and the role language will play in it. The major factor will be Dawkins' idea of the meme. They see memes as a Lamarckian element in human culture, guiding the path of our ongoing development. Clearly, a required companion volume to this book is Susan Blackmore's THE MEME MACHINE. This is a superb summation of evolution's workings and a must read for anyone wishing a start in the mechanics of life. Please buy, read and point your friends to this seminal effort.
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Summary: Transitions model is fascinating
Review: This short, stunning book is at least two books in one. It tells the latest version of the story of how life arose and evolved. And it explicates the authors' model of evolution as composed of "major transitions" of which they discern and dissect eight. These transitions, of which an example is the transition from RNA as double duty gene and enzyme to the specialized use of DNA and protein, make an intriguing model around which to explicate various mechanisms of life. "Origins" in the title, however, is confusing; it is less about the beginnings of life than life's history of originating new structures. It moves quickly through the latest findings supplemented by plausibility arguments.
Rating:
Summary: Transitions model is fascinating
Review: This short, stunning book is at least two books in one. It tells the latest version of the story of how life arose and evolved. And it explicates the authors' model of evolution as composed of "major transitions" of which they discern and dissect eight. These transitions, of which an example is the transition from RNA as double duty gene and enzyme to the specialized use of DNA and protein, make an intriguing model around which to explicate various mechanisms of life. "Origins" in the title, however, is confusing; it is less about the beginnings of life than life's history of originating new structures. It moves quickly through the latest findings supplemented by plausibility arguments.
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