Close-up shot of 'killer' of pistol shrimp, speed 97km / h

Pistols or percussion shrimp are only about 3 - 5cm in size. They look quite similar to other normal shrimp species, except for the pair of "big baby".

The bigger the bigger the bigger the smaller the lot. Its head is not as pointed as its normal pliers but rather obtuse. The giant pistol of the shrimp gun is divided into two parts: the lower fixed and the upper part can move, forming a right angle with the lower half. It is this special structure that makes the bigger tank a very special weapon, a deadly sound gun.

Prawn species use this larger pike to hunt by creating an explosive balloon with pressure up to 80kPa at a distance of 4cm. The speed of air bubbles up to 97km / h and produces explosions of up to 218 dexibels, louder than the sound of powerful rifles heard from a distance of one meter or jet engine. Considering the size ratio, the Alpheus bellulus species living in the Indian Ocean - Western Pacific Ocean is the most noisy creature on the planet, the cries of sperm whales can reach 230 decibels ( dB).

Shrimp type shrimp only takes a mere 1/100 seconds to make the clamp as dangerous as that. When air bubbles burst, they also produce temperatures of up to 4,700 degrees Celsius. The shockwave generated can stun shrimp and small fish within 2 meters.