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“These invertebrate-inspired albino bots relied on elastic polymers and pneumatic pumps to imitate the movements of worms, squid and starfish. Now these squishy quadrupeds can be pumped with a variety of dyes, enabling them to either blend in or stand out from their environments.”

http://blogs.scientificamerican.com/observations/2012/08/16/a-dash-of-color-creates-camouflage-for-spineless-robots/

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