title: A comparative approach to vocal communication.
authors.affiliation: University of Wisconsin, Madison.
authors.forename: C T
authors.initials: CT
authors.lastname: Snowdon
mesh_terms: D000818:Animals; D006801:Humans; D009042:Motivation; D011587:Psychology, Comparative; D013045:Species Specificity; D014705:Verbal Behavior; D014828:Vocalization, Animal