title: The emergence of intelligence.
authors.affiliation: University of Washington School of Medicine.
authors.forename: W H
authors.initials: WH
authors.lastname: Calvin
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001921:Brain / Q000502:physiology; D006801:Humans; D007360:Intelligence / Q000235:genetics / Q000502:physiology*; D013997:Time Factors