Distinct voices fill the fish soundscape at night
![Reef at Sodwana Bay](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/04/ticker_ht_sodwanabay.jpg?fit=860%2C460&ssl=1)
To map a fish soundscape, researchers put a recording device in an underwater cave 120 meters down in one of the canyons that line Sodwana Bay (shown) in South Africa. That local aquatic community includes coelacanths, ray-finned fish, sharks and other species.
Ros in Wonderland/Flickr (CC BY-NC-ND 2.0)