Reflections on the human revolution.
D000818:Animals; D000883:Anthropology; D005075:Biological Evolution; D006801:Humans; D007802:Language; D010988:Play and Playthings; D011323:Primates; D011573:Psychoanalytic Interpretation; D011574:Psychoanalytic Theory; D012094:Repression, Psychology; D014705:Verbal Behavior