Can Sound Save a Fish? (AUDIO) University of Texas at Austin Your browser does not support the audio element. Caption In this episode of the Point of Discovery podcast: Gulf Corvina look pretty ordinary -- they're a couple of feet long and silvery. Yet the sounds they make -- when millions get together to spawn -- are a kind of wonder of the natural world. It's also why they are in danger. When Erisman put a microphone in the water for the first time, he was blown away by the sounds he heard. Credit Marc Airhart/Univ. of Texas at Austin 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.