A staff member of Sanjiangyuan National Park observes the eggs of black-necked cranes in Hoh Xil, northwest China's Qinghai Province, July 15, 2018. (Xinhua/Tian Wenjie)
Photo taken on July 15, 2018 shows Tibetan wild donkeys in Hoh Xil, northwest China's Qinghai Province. (Xinhua/Tian Wenjie)
Photo taken on July 15, 2018 shows Tibetan antelopes and Tibetan wild donkeys in Hoh Xil, northwest China's Qinghai Province. (Xinhua/Tian Wenjie)