title: Vocal tract and brain: a search for evolutionary bottlenecks.
mesh_terms: D000162:Acoustics; D000818:Animals; D005075:Biological Evolution; D000882:Haplorhini; D049690:History, Ancient; D015186:Hominidae / Q000033:anatomy & histology; D006801:Humans; D007100:Imitative Behavior; D007830:Larynx / Q000033:anatomy & histology; D010159:Palate / Q000033:anatomy & histology; D010311:Parrots / Q000033:anatomy & histology; D011323:Primates / Q000033:anatomy & histology; D012137:Respiratory System / Q000032:analysis; D014132:Trachea / Q000033:anatomy & histology; D014828:Vocalization, Animal