Friday, 28 March 2014

Canal between ears helps alligators pinpoint sound


Date:
March 26, 2014

Source:
University of Maryland

Summary:
Alligators can accurately pinpoint the source of sounds. But it wasn't clear exactly how they did it because they lack external auditory structures. A new study shows that the alligator's ear is strongly directional because of large, air-filled channels connecting the two middle ears. This configuration is similar in birds, which have an interaural canal that increases directionality.


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