Norman Tenner Adler (June 7, 1941 – September 11, 2016) through his research, teaching, writing, and academic administration, made major contributions to the modern study of biological psychology and in American higher education, having helped develop the fields that are now labeled and evolutionary psychology. One of Adler's prominent experiments included an in depth analysis of mating performance of male rats and its relation to fertilization in the female, which led him to observe how behaviour could affect reproduction in species. With his students and colleagues, he has worked at the interface between biology and behavior. They have stressed the importance of combining the study of physiological mechanisms controlling behavior with the functional/adaptive significance of behavior in