The Origin of Animal Body Plans : A Study in Evolutionary Developmental Biology

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Summary: Body plans, hox genes, and developmental biology
Review: This work is a technical introduction to evolutionary developmental biology and introduces a very different perspective on evolution from what one is used to in the usual biology texts. In spite of its moderate difficulty, to a non-specialist, it is actually much clearer than simplified versions of Darwinism, and one can recommend it strongly as a perspective on the separate current to the Neo-Darwinian synthesis that has flowed from its nineteenth century origins parallel to Darwin. In the age of the Genome this dark side of the moon as to theoretical paradigms is coming into full view. The book starts with an exhortation to the reader "to believe that current evolutionary theory based on natural selection and adaptation in natural lineages is, at the very least, incomplete..." The author asks, did "evolution really have an early 'morphogenetic' phase during which most major body plans originated?" The difficulty of explaining the fact that no phylum-level body plans have arisen in the last 500 my becomes one of the starting points of the book. In general this perspective asks for the creative aspect of development beyond the destructive aspect of natural selection models. From there the book proceeds to the issues of cladism, body plans, genetic regulation, and many other topics in a comprehensive presentation. The crucial significance of all this for understanding evolution and extricating oneself from disinformation in the Darwin debate are obvious. Much of the boilerplate and blah-blah of the public discourse on evolution can be left behind in a fast getaway into some better fare than the current offerings. We are beginning to catch a glimpse of a new world of evolution, one that has been with us all along in embryo, as forseen by such biologists as Soren Lovtrup in Darwinism: Refutation of a Myth. That day is now arriving.