Quotes, aphorisms, famous sentences
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The definition widely adopted in recent decades-Evolution is the change of gene frequencies in populations-refers only to the transformational component. It tells us nothing about the multiplication of species nor, more broadly, about the origin of organic diversity. A broader definition is needed which would include both transformation and diversification. (Mayr, Ernst [Emeritus Professor of Zoology, Harvard University], The Growth of Biological Thought: Diversity, Evolution, and Inheritance, Belknap Press: Cambridge MA, 1982, p400)