title: Did primitive man really talk like an ape?
authors.forename: J M
authors.initials: JM
authors.lastname: Christensen
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005260:Female; D007839:Functional Laterality; D015186:Hominidae; D006803:Human Development; D006801:Humans; D007804:Language Development; D008297:Male; D013060:Speech; D014705:Verbal Behavior