Argali sheep forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Tibetan gazelles forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Tibetan gazelles forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Tibetan gazelles forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Tibetan gazelles forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Argali sheep forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Tibetan gazelles forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)
Tibetan gazelles forage at Haltent Grassland in Kazak Autonomous County of Aksay, northwest China's Gansu Province, Nov. 30, 2019. (Photo by Ma Xiaowei/Xinhua)