Professor Gaulin has two cross-fertilizing research interests: the influence of sexual selection on human anatomy, physiology, cognition and behavior; and evolutionary psychology.  His research involves a wide range of field and laboratory techniques and has been published in books and journals that span evolutionary theory, ecology, anthropology, psychology and philosophy of science.  He is senior author of a leading textbook (Evolutionary Psychology 2nd edition, Prentice Hall), and co-editor-in-chief of the journal Evolution and Human Behavior