Cephalopods are the undisputed masters of camouflage. While their relatives, the clams, stayed brainless and safe on the seabeds-of-old, the ancient nautilus (think squid-in-a-shell) made a daring foray into the world of mobile hunting. Today’s cunning stalkers instantly morph into seaweed and rocks, shifting color, pattern, texture, or thermal profile. They become transparent, bioluminescent, or iridescent. How do they do it? Will they teach us? Let’s take a closer look at this remarkable feat of engineering in today’s issue of The Biomimicry Manual.