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Scoop.it!
The shifting colors on the skin of cuttlefish and other cephalopods could lead to bio-inspired camouflage and signalling, researchers say. 
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"Based on the camouflage abilities of octopuses and cuttlefish, engineers in the US have built a flexible material that changes colour to match its surroundings. The new design features a grid of 1mm cells, containing a temperature-driven dye that switches colour on demand." "
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Suits are designed to mimic nature, some camouflaging swimmers, others warning sharks to stay away
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"Cephalopods are curious creatures, able to flex their bodies into nifty shapes and camouflage themselves from sight. Unsurprisingly, they have also been inspiring biomimicry-led designs for years because of this. This month a paper to be published in Nature Communications deals with their flexi-strechy skills and describes how man can now engineer an elastic film that lights up when stimulated using electricity. Meanwhile, a team of US material scientists has opted to create a new method of colour display using a technique they say will get us that much closer to the holy grail of cephalopod biomimicry studies: camouflaging "squid skin" that morphs into background shades automatically, (otherwise known as a metamaterial)."
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"Pencil squid have long proven useful to humans, mostly in the form of fried calamari on dinner plates, but a novel use for the creature has been discovered by researchers at University of California, Irvine, who have developed a camouflage coating from a protein in the everyday squid."
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Cuttlefish are camouflage experts that can change skin color in under a second to hide from predators, or prey on others. They're inspiring more than just awe from scientists. Now researchers at MIT are working on electronic screens and ink that use less than one hundredth the energy of traditional screens--all modeled on the color-changing abilities of cuttlefish.
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