<b>Drawing on startling new evidence from the mapping of the genome, an explosive new account of the genetic basis of race and its role in the human story</b><br /> Fewer ideas have been more toxic or harmful than the idea of the biological reality of race, and with it the idea that humans of different races are biologically different from one another. For this understandable reason, the idea has been banished from polite academic conversation. Arguing that race is more than just a social construct can get a scholar run out of town, or at least off campus, on a rail. Human evolution, the consensus view insists, ended in prehistory.<br /><br />Inconveniently, as Nicholas Wade argues in <i>A Troublesome Inheritance</i>, the consensus view cannot be right. And in fact, we know that populations have changed in the past few thousand years—to be lactose tolerant, for example, and to survive at high altitudes. Race is not a bright-line distinction; by definition it means that the more human p
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