title: [2d signal system as a diagnostic boundary between Troglodytidae and Hominidae].
mesh_terms: D000883:Anthropology; D005075:Biological Evolution; D006801:Humans; D013060:Speech; D013064:Speech Disorders
vernacular_title: Vtoraia signal'naia sistema kak diagnosticheskiĭ rubezh mezhdu trogloditidami i gominidami.