Mating Hum of Male Midshipman (AUDIO) Marine Biological Laboratory Your browser does not support the audio element. Caption This is a 28-second audio clip of the low-frequency, resonant hum that Type 1 male midshipman fish use to attract females to their nests. Credit Elizabeth Whitchurch/MBL Grass Fellow Usage Restrictions Use with proper credit 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.