The best camouflage you will ever see. This guy comes out of cloak like a startled Romulan warbird, then fires (ink) and hurriedly makes off for a more, ahem, neutral zone. (Also does a great imitation of a walking rock.)

Crikey, they're fast! www.dianeduane.com/outofambit/2011/08/06/the-case-of-the-clandestine-cephalopod via bynkii