Massimo Pigliucci is an associate professor in the department of ecology and evolution and in the philosophy department@Stony Brook University. He is the author of several books, including Denying Evolution: Creation, Scientism, and the Nature of Science (Sinauer, 2002) and Phenotypic Plasticity: Beyond Nature and Nurture (Johns Hopkins University Press, 2001). www.genotypebyenvironment.org