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Robots navigate the Bowling Green State University campus in Bowling Green, Ohio, on Thursday, Oct. 13, 2021. Robot food delivery is no longer the stuff of science fiction. Hundreds of little robots — knee-high and able to hold around four large pizzas — are now navigating college campuses and even some city sidewalks in the U.S., the U.K. and elsewhere. (AP Photo/Carlos Osorio) ** FILE **

Robots navigate the Bowling Green State University campus in Bowling Green, Ohio, on Thursday, Oct. 13, 2021. Robot food delivery is no longer the stuff of science fiction. Hundreds of little robots — knee-high and able to hold around four large pizzas — are now navigating college campuses and even some city sidewalks in the U.S., the U.K. and elsewhere. (AP Photo/Carlos Osorio) ** FILE **

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