Ko Je-sung, a professor of Ajou University, shows a miniature robot called Rhagobot, modeled after the movement of Rhagovelia, a genus of water strider insects, during a press conference at the government complex in Sejong, central South Korea, on Aug. 21, 2025. Researchers from South Korea and the United States have developed the robot that was highlighted on the cover of the next day's edition of the U.S. academic journal Science.
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