There are some shrimp species equipped with truly remarkable weaponry. The pistol shrimp’s massive claw closes with a powerful snap—louder than a gunshot, at 210 decibels—temporarily creating an air bubble with so much energy that it pops with an underwater shock wave and a flash of light and heat temporarily hotter…
Source: Gizmodo – How These Deafening Shrimp Evolved Their Own Deadly Sonic Weapon