Peter J. Richerson is Distinguished Professor Emeritus in the Department of Environmental Science and Policy at the University of California, Davis. He has coauthored several books with Robert Boyd, including Culture and the Evolutionary Process and Not by Genes Alone.
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In a few decades, a torrent of new evidence and ideas about human evolution has allowed scientists to piece together a more detailed understanding of what went on thousands and even millions of years ago. We now know much more about the problems our ances... SEE MORE