Pufferfish are generally silent. They do not have vocal cords and do not make sounds humans can hear.
However, they communicate through non-vocal methods:
- Body language: Puffing up, changing color, and using fins to signal.
- Chemical signals: Releasing pheromones.
- Electrical signals: Some species generate weak electric fields.
So while they are quiet to human ears, pufferfish are still able to communicate with each other.