Many cephalopods, like not less than 70 genera of squid, are bioluminescent.[31] Some squid and compact crustaceans use bioluminescent chemical mixtures or bacterial slurries in a similar way as several squid use ink. A cloud of luminescent material is expelled, distracting or repelling a possible predator, while the animal http://jaredjjdxp.blog5.net/38114537/details-fiction-and-bio-fluorescence