Judged: two independent readers; copy check clear.
external ear
external ear The external ear, in this packet’s context, is the dolphin’s outer ear canal and its surrounding fatty, vascular, and nerve-rich tissues.
The external ear, in this packet’s context, is the dolphin’s outer ear canal and its surrounding fatty, vascular, and nerve-rich tissues. Together these structures help conduct sound and also appear to function as a complex somatosensory system adapted to underwater hearing and mechanosensation.