Dario Maestripieri earned his Ph.D. in psychobiology from the University of Rome, Italy, in 1992. He is currently an associate professor of comparative human development and evolutionary biology at the University of Chicago. His research interests focus on the biology of behavior, and in particular on physiological, ecological and evolutionary aspects of primate social behavior. Dr. Maestripieri has published over 130 scientific articles and several books including Primate Psychology (Harvard University Press, 2003) and Macachiavellian Intelligence: How Rhesus Macaques and Humans Have Conquered the World (The University of Chicago Press, 2007).