When a ladybug takes flight, its wings spring open within a tenth of a second—faster than a blink of an eye. And once unfurled, those wings remain open, allowing them to flap quickly without risk of folding or buckling. These properties make the colorful little beetles a great source of inspiration for flying robots, says Kyu-Jin Cho, the director of the Soft Robotics Research Center at Seoul National University in South Korea. He and his colleagues have built robots that fly using a pair of wings that snap open and lock much like those of real ladybugs.

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