Cockroach robot won't break after being repeatedly stamped on

Ever tried to stamp on a pesky insect only to see it scuttle off gleefully once you raise your shoe? You may soon have the same difficulty eradicating tiny robots. A simple machine seems to have the robustness of a common cockroach. "It looks really like a cockroach moving on the ground," says Liwei Lin at the University of California, Berkeley. He and his colleagues describe their prototype robots, comprising a curved rectangle and angled front leg.