Daniel G. Freedman (born 16 January 1927, died 10 June 2008[1]) was an American psychologist and Professor in Comparative Human Development at the University of Chicago, who pioneered the use of biological and evolutionary viewpoints to understand differences of human behavior.
His studies of behavioral differences in dogs and human infants were ground-breaking.
[3] From 1957-1959 he made a longitudinal study of infant twins at the Langley Porter Neuropsychiatry Institute.
[4] From 1963-1964 he studied at the Institute for Medical Genetics, Uppsala, Sweden, on an NIMH Special Fellowship.
From 1971-1972 he co-led (with Gregory Bateson) an observational study of different cultures at the International School of America.