Nemo’s Secret: Clownfish Use “Snappy” Trick to Make Weird Sounds

Movie magic gave a human voice to the hero of Finding Nemo. Now scientists have figured out how real-life clownfish make “chirp” and “pop” noises to woo mates and ward off enemies.

The mechanism hinges on a pair of tendons apparently unique to the family of fish that includes clownfish, explained Michael Fine, a biologist at Virginia Commonwealth University.