Alligators pinpoint sounds with air channels

Alligators can pinpoint the source of sounds because of large, air-filled channels connecting the two middle ears, new research shows.

Researchers found the channels looking for internal structures in the alligators’ heads that might propagate sound between the two eardrums. The eardrum’s vibration was amplified at certain frequencies.

Birds have a similar hearing configuration with an interaural canal that increases directionality.

Read more at University of Maryland