A keeper helps a panda cub to practice climbing up and down at the Chengdu Research Base of Giant Panda Breeding in Sichuan province on October 19, 2015. (Photo: China News Service/ Hou Yu)
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A keeper helps a panda cub to practice climbing up and down at the Chengdu Research Base of Giant Panda Breeding in Sichuan province on October 19, 2015. (Photo: China News Service/ Hou Yu)
