A shrimp smaller than your thumb can snap a bubble louder than a gunshot

A pistol shrimp's oversized claw snaps shut so fast it fires a jet of water that collapses into a cavitation bubble, producing a sound that can briefly exceed 200 decibels, loud enough to stun or kill small prey at a distance. The bubble's collapse also momentarily produces a tiny flash of light and temperatures approaching several thousand kelvin, hotter than the sun's surface, though the energy involved is far too small to pose any real heat hazard.

— Detlef Lohse et al., Snapping Shrimp Make Flashing Bubbles — Nature, 2001