![Scenery of Altun Mountains National Nature Reserve in Xinjiang(12/13)](http://www.ecns.cn/hd/2018/04/05/20933e4393a045f6b39a2f18b168a487.jpg)
A wild yak is seen in the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region, April 2, 2018. (Xinhua/Jiang Wenyao)
A wild yak is seen in the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region, April 2, 2018. (Xinhua/Jiang Wenyao)