From Wikipedia, the free encyclopedia. Paul Zachary "PZ" Myers (born March 9, 1957) is an American biology professor at the University of Minnesota Morris (UMM) and the author of the science blog Pharyngula. He is currently an associate professor of biology at UMM, works with zebrafish in the field of evolutionary developmental biology (evo-devo), and also cultivates an interest in cephalopods. H... show more