Fruit Fly Pulse Courtship Song 2 (audio) Cell Press Share Print E-Mail Loading audio... Caption Repeats of a 1s pulse song excerpt with short intervals. Credit Philip Coen Usage Restrictions Credit Required. Share Print E-Mail 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.