Beating Heart of a Fruit Fly (VIDEO) Duke University This video is under embargo. Please login to access this video. Caption Duke University researchers captured this video of a fruitfly's beating heart (a long chamber along its back) while performing research on how genes control the size a heart will grow to. Credit Matthew J. Wolf, Duke University Usage Restrictions Please credit: Matthew Wolf, Duke University 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.