title: Paleontology. The ears have it: first snakes were burrowers, not swimmers.
authors.forename: Michael
authors.initials: M
authors.lastname: Balter
mesh_terms: D000818:Animals; D059001:Aquatic Organisms / Q000502:physiology; D007758:Ear, Inner / Q000033:anatomy & histology*; D005580:Fossils; D008124:Locomotion; D010163:Paleontology; D012911:Snakes / Q000033:anatomy & histology* / Q000502:physiology*; D013550:Swimming