title: Meaning and mind in monkeys.
authors.affiliation: University of Pennsylvania.
authors.forename: R M
authors.initials: RM
authors.lastname: Seyfarth
authors.forename: D L
authors.initials: DL
authors.lastname: Cheney
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D005260:Female; D000882:Haplorhini; D008297:Male; D013060:Speech; D014828:Vocalization, Animal