Many cephalopods, which includes not less than 70 genera of squid, are bioluminescent.[31] Some squid and tiny crustaceans use bioluminescent chemical mixtures or bacterial slurries in a similar way as quite a few squid use ink. A cloud of luminescent material is expelled, distracting or repelling a possible predator, http://genghism073pxf9.develop-blog.com/profile