Underwater (IMAGE) Duke University Caption This is the Howle research group spear hunting off Panama City Beach, FL. From left to right: Professor Laurens Howle, PhD candidate Greg Murphy, Duke PhD alumnus Ethan Hada. Credit Laurens Howle, Duke University Usage Restrictions None License Licensed content 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.