Csendes óceán nyugati részén élő tintahal, fényt villant a mélységben mellyel odacsalja a kamikaze halakat.A csápokon találhatók a "photophorék" amelyek a fényt termelik. A 3 centis kis ragadozó nappal több száz méter mélyen vadászik, hogy éjjel megpihenjen a felszínen. Ráadásul a teste oly fondorlatos, hogy csak felülről csábító és létszik, alulról nem így a ragadozók nem veszik észre.Párzás alatt az egész testük fényárban úszik. http://indavideo.hu/video/Szentjanosbogar_tintahal__fi... _____________________________________________________________________________________ Watasenia scintillans, also known as the sparkling enope squid or firefly squid, is a species of squid in the family Enoploteuthidae. It is the sole species in the genus Watasenia.,,,,,,,,,,,,,,,,, The sparkling enope squid is found in the Western Pacific ocean at depths of 183 to 366 metres (600–1200 feet) and exhibits bioluminescence. Each tentacle has an organ called a photophore, which produces light. When flashed, these lights attract small fish, on which the squid can then feed. This squid is the only species of cephalopod in which evidence of color vision has been found. It has three visual pigments located in different parts of the retina which likely allows color discrimination, each having distinct spectral sensitivities. The sparkling enope squid measures about 3 inches long at maturity and dies after one year of life. It has the standard eight arms and two tentacles, with one pair each having three, bright light-emitting organs at the tips. The squid spends the day at depths of several hundred metres, returning to the surface when night falls. The combination of light-sensing and light-producing organs enable it to match its underside to the brightness and colour coming from the surface (counter-illumination), making it hard for predators from below to detect it.