(source of photo here)
The firefly squid (Watasenia scintillans) (also known as sparkling enope squid) is a small member of the squid family, growing to a length of only 3”. It is found at depths of 600-1200’ in the Western Pacific ocean. What makes this squid so beautiful and amazing is that it is bio-luminescent; equipped with special light-producing organs called photophores. These photophores are found on many parts of the squid’s body and emit a deep blue light. The lights can be flashed in unison or alternated in an endless number of patterns. These light shows are thought to serve several functions. They can be used to communicate with potential mates or rivals. They may also be used to disguise the squid’s shape and confuse predators, allowing it to escape.
(Source)
