Chagos blue whale song recording (AUDIO) University of New South Wales Your browser does not support the audio element. Caption Audio recording of Chagos whale song captured by CTBTO hydrophones in the Indian Ocean. Credit UNSW/CTBTO Usage Restrictions Credit must be given to the creator. License CC BY 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.