Qianjiang, Chongqing City, China-- They say that everything is music. Even silence. But these croaking frogs take it to another level.
They're found high in a mountain in Southwest China, and the species have a unique croak -- like the sound of the plucking of a stringed instrument, and when there's a number of these frogs croaking together, they sound like a melody.
Local wildlife officials are trying to protect the species and their unique sound.