Sheep graze near a sand dune at the Tianshan mountain scenic area in Hami, northwest China's Xinjiang Uygur Autonomous Region, May 29, 2017. (Xinhua/Polat)
Sheep graze near a sand dune at the Tianshan mountain scenic area in Hami, northwest China's Xinjiang Uygur Autonomous Region, May 29, 2017. (Xinhua/Polat)