"Surprising Discovery: Small Fish Create Loud Sounds with Gills"

Scientists have discovered that the tiny, transparent fish Danionella cerebrum can produce a sound as loud as a jackhammer, tapping out 140 decibels with its swim bladder. This makes it one of the loudest fish for its size yet found, and researchers believe the drumming may be a form of social communication. The fish's transparency allows for close study of its behavior, and the study has been published in the journal Proceedings of the National Academy of Sciences.