If you want to learn the art of camouflage look no further than octopuses. Just watch this famous video that shows a diver slowly swimming up to a clump of rock and seaweed, only for part of that clump to turn white, open its eye, and jet away, squirting ink behind it. Materials scientists and engineers have fallen under the octopuses' spell. From a report: Scientists have engineered a material that can transform from a 2D sheet to a 3D shape, adjusting its texture to blend in with its surroundings, per a new study published today in Science. They mimicked the abilities of an octopus, which can change both shape and color to camouflage. This is a first step toward developing soft robots that can hide in plain sight, robotics expert Cecilia Laschi writes of the research. Robots that can camouflage may one day be used in natural environments to study animals more closely than ever before or in military operations to avoid detection, she writes.