The Loudest Animal on Earth Is a Shrimp

In the vast depths of the ocean, the most deafening sound comes not from a colossal whale, but from a creature barely two inches long. The pistol shrimp has a specialized large claw that it can cock like the hammer of a gun. When released, this claw snaps shut at speeds over 60 miles per hour, firing a jet of water so fast that the pressure around it drops, forming a tiny vacuum pocket called a cavitation bubble. The 'snap' sound isn't the claws hitting, but rather the astonishing consequence of this bubble's existence.

The true power is unleashed less than a millisecond later as the bubble violently collapses. This implosion generates a powerful shockwave and a stunningly loud crack reaching 218 decibels, far louder than a gunshot, which the shrimp uses to stun or kill its prey. This violent event also produces a brief flash of light and a spike in temperature to around 8,000 degrees Fahrenheit, momentarily hotter than the surface of the Sun. Known as sonoluminescence, this process makes the tiny shrimp's hunt one of the most extreme physical events in the animal