#6 I saw that on a Star Trek episode : )
It destroyed a Romulan starship.
http://memory-alpha.wikia.com/wiki/Tin_Man_(episode)
I wonder how God decided to create a cuttlefish. He probably took a sip of coffee and thought, “You know what I need to make now is a fish who changes its color to mesmerize other fish and all those underwater photographers who will one day go beneath the ocean to film them.”