Paddlefish, Waves causing fluctuations in air pressure inside rock producing "breathing" noise,

The humphead wrasse (Cheilinus undulatus)

It is also known Napoleon fish because of the hump on the forehead, which resembles the hat of the French emperor Napoleon Bonaparte.
Waves causing fluctuations in air pressure inside rock cavities producing this heavy "breathing" noise

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Paddlefish are easily recognizable by their distinctive rostrum- a paddle-shaped snout.

This snout is equipped with specialized electroreceptors, called ampullae of Lorenzini, which allow them to detect weak electrical signals emitted by their prey.