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Gathering insights from his seven-decade career, the renowned biologist Ernst Mayr argues that evolution is now to be considered not a theory but a fact--and that "there is not a single Why? question in biology that can be answered adequately without a consideration of evolution."
Mayr, emeritus professor of zoology at Harvard University, has long been one of the world's foremost researchers in genetic and evolutionary theory. In this overview of past and current scientific thought, he discusses key concepts and terms, among them the origin of species, the (somewhat metaphorical) "struggle for existence," and agents of micro- and macroevolution. Somewhat against the grain, he argues against reduction and for the study of evolution at the phenotypic, not genetic, level. In his concluding pages, Mayr offers a careful overview of human evolution, adding his view that humankind is indeed unique--though "it has not yet completed the transition from quadrupedal to bipedal life in all of its structures."
Advanced students of the life sciences, as well as readers looking for a survey of current evolutionary theory, will find Mayr's book a useful companion. --Gregory McNamee
From Publishers Weekly
At age 97, Ernst Mayr is one of the most influential scientists of the 20th century, and here he delivers yet another valuable addition to the field of evolutionary theory. Mayr, who was also a curator at the American Museum of Natural History for two decades, guides lay readers through evolutionary thought from the book of Genesis and creationist theory through Darwin's theories and "soft" evolution and on to more contemporary, inclusive concepts. He takes readers on a whirlwind voyage from the scala naturae (the Great Chain of Being, in which everything in the world was accorded a position in a developmental hierarchy) to Mayr's own work, which builds on Darwinian theory and environmental factors. No one but Mayr could explain evolution so well, and though the text is peppered with many scientific terms, overall the author is triumphant in his goal to teach "first and foremost... biologist or not, [anyone] who simply wants to know more about evolution." While many authors suggest their tomes are the authoritative source, Mayr remains humble, reminding readers that "many details remain controversial." And the combination of his expertise, his elegant prose and the sheer pleasure of so many enthralling facts (the 145-million-year-old Archaeopteryx is a near perfect link between reptiles and birds, for example) means that studying the fossil record has rarely been so absorbing. Appendixes answer FAQs and respond to various objections to evolutionary theory, while a glossary offers entries from acoelomate to zygote.
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