In a Northwest A&F University lab in China, twin robots are being trained to pick apples, with an average speed of one apple every 7.5 seconds. The taller "Big Baby" picks apples growing above 1.5 meters, while the shorter "Little Baby" handles lower-hanging fruit. Equipped with visual systems and flexible arms, the robots can identify, select and pick good apples, avoiding obstacles. Scientists are optimizing the robots, testing their climbing and obstacle-crossing abilities, before putting them into use this autumn.