DeVore, not one to shy away from controversy, was also an early enthusiast of the fields of
sociobiology and
evolutionary psychology, fostering their development through mentoring and teaching as well as through interviews, lectures, debates, and writing for scientific and popular audiences. He became an advocate for the evolutionary biological approach after being one of the few to listen to the ideas of Robert Trivers, who was shunned due to his mental illness. Several years into this new way of looking at animal and human behavior, DeVore was asked whether the data were really supporting it. He liked to say, "The data are sitting up and begging." By the turn of the millennium sociobiology and evolutionary psychology had become normal science, although still controversial. One of the painful consequences for DeVore in the '80s and '90s was that his mentor and close friend, "Sherry" Washburn, was a bitter opponent of the new approach. They eventually reconciled, but never agreed. DeVore had a sometimes caustic but compelling personality and intellect that worked their influence in and out of the classroom. He appeared on many television programs as an expert or narrator. He played an instrumental role in developing supplementary school curricula, one of which, "Man: A Course of Study" (MACOS) became a subject of Congressional debate because of its emphasis on evolution. The son of an itinerant
Methodist preacher in East Texas, DeVore had sold Bibles door-to-door for a time as a very young man, but when he became convinced of the validity of Darwin's theory, he taught and defended it with what many said was a compelling art of persuasion. He suggested that, due to
sexual selection, "Males are basically a breeding experiment run by females" and that "Males are the safest, most consistent way to contribute variation to the system..." Irven DeVore once said that "There is no excuse for boring students when you're talking about human nature. It's too interesting." He taught in large lecture halls that were perennially full as well as in the smaller but influential "Simian Seminar," which met in his living room on Wednesday evenings, in his rambling, comfortable home on a quiet wooded street in
Cambridge. Leading or rising figures in the fields he was interested in came to address the seminar, which was a center of intellectual ferment in those fields for decades. Through these seminars, the ideas of evolutionary biology rose to prominence as
group selection (with regard to explaining behaviour) faded, albeit not directly through Irven's work. Leda Cosmides and John Tooby, two attendees of the seminars, stated "DeVore's intellectual impact is less well known because his ideas were realized through his students and colleagues." ==Personal life and awards==