David P. Barash is an evolutionary biologist, Professor of Psychology emeritus at the University of Washington, and author of more than 200 technical research articles, and 39 books. He is also a long-time peace activist and was named by a right-wing organization as one of the 64 most dangerous professors in the US.
Judith Eve Lipton is a psychiatrist who practiced psychopharmacology and psychosomatic medicine for 30 years. She learned sociobiology from David Barash, and they went on to maximize their fitness by investing in 4 children and 7 grandchildren, so far, not to mention co-authoring 8 books, about war, sex, and human nature. She is passionate about animals, peace, and the prevention of nuclear war.