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A yak calf is seen on snow-covered grassland in Haiyan County of Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, April 13, 2018. (Xinhua/Zhang Hongxiang)
A yak calf is seen on snow-covered grassland in Haiyan County of Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province, April 13, 2018. (Xinhua/Zhang Hongxiang)