Animal-like robots are taking over the labs. It is not just dogs that engineers are copying now, but shrews complete with whiskers, swimming lampreys, grasping octopuses, climbing lizards and burrowing clams. They are even trying to mimic insects, by making robots that take off when they flap their wings.
One group of scientists is building a robotic octopus. To recreate this creature, they started with its arms. In a vertebrate’s arms, muscles do the moving and bones carry the weight. An octopus arm, though, has no bones, so its muscles must do both jobs. Its advantage is that, besides grasping things tightly, it can also squeeze into nooks and crannies that are inaccessible to vertebrate arms of similar dimensions. This is the killer app that the scientists want to capture. Economist
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