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Feeder Yao Jing prepares fish for penguins at the Harbin Polarland in Harbin, northeast China's Heilongjiang Province, Jan. 18, 2018. Yao Jing is a feeder for penguins at the Harbin Polarland. Among all the penguins she feed, one named "Baobao" is particularly close to her. (Xinhua/Wang Jianwei)?