Alligator Earflap Opening (image) University of Maryland Caption This is an alligator that participated in a University of Maryland study that found that the alligator's ear is strongly directional because of large, air-filled channels connecting the two middle ears. This photo shows the earflap opening behind the alligator's eye. Credit Hilary Bierman Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.