sentence: Salamanders have no external ear, and only a vestigial middle ear.
sentences_before: To find their prey, salamanders use trichromatic color vision in the ultraviolet range. Permanently subterranean salamanders have reduced eyes, which may even be covered by a layer of skin. The larvae, and the adults of some highly aquatic species, also have a lateral line organ, similar to that of fish, which can detect changes in water pressure.
concept_name: salamander
headings: Salamander Features