Tiger pistol shrimp
Encyclopedia
The tiger pistol shrimp, Alpheus bellulus, is a species of snapping shrimp
Alpheidae
Alpheidae is a family of caridean snapping shrimp characterized by having asymmetrical claws, the larger of which is typically capable of producing a loud snapping sound. Other common names of these species include pistol shrimp or alpheid shrimp.The family is diverse and worldwide in distribution,...

. It lives in symbiosis
Symbiosis
Symbiosis is close and often long-term interaction between different biological species. In 1877 Bennett used the word symbiosis to describe the mutualistic relationship in lichens...

 with gobies
Goby
The gobies form the family Gobiidae, which is one of the largest families of fish, with more than 2,000 species in more than 200 genera. Most are relatively small, typically less than 10 cm in length...

 such as species of Amblyeleotris
Amblyeleotris
Amblyeleotris is a genus of colourful gobies found throughout the Indo-Pacific region. With 37 recognized species, this is the largest genus of the shrimp gobies or prawn gobies, so-called because of their symbiotic relationship with certain alpheid shrimps...

and Cryptocentrus. It is also one of the loudest creatures on earth as the tiger pistol shrimp can emit a sound up to 200 decibels which it uses to stun its prey.
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