Michael Ruse is Lucyle T. Werkmeister Professor of Philosophy and Director of the Program in the History and Philosophy of Science, Florida State University. He is the founder and editor of the journal Biology and Philosophy, and has appeared on �eoeQuirks and Quarks�e and the Discovery Channel.Gilbert Waldbauer is Professor Emeritus of Entomology at the University of Illinois, Urbana-Champaign.Michael F. Brown is Lambert Professor of Anthropology and Latin American Studies at Williams College.