David P. Barash, Ph.D., is an evolutionary biologist and professor of psychology emeritus at the University of Washington. He has written 38 books covering evolution, animal and human behavior, and peace studies. He is a Fellow of the American Association for the Advancement of Science. He is married to psychiatrist and frequent co-author Judith Eve Lipton. He was named as one of the "101 most dangerous professors" in the U.S. by conservatives.