Stealthy robots with microphones could improve maps of ocean noise
Understanding ocean noise is important for conservation efforts, researchers say
![ocean glider](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/11/112119_sb_oceanbot_feat.jpg?fit=1028%2C579&ssl=1)
An ocean glider equipped with a microphone recorded ocean noises during an 18-day journey off the U.S. West Coast in 2012.
Oregon State University