Footprints of a snow leopard are found in a snow field in the Qilian Mountains nature reserve in Zhangye City, Northwest China's Gansu Province, March 2, 2019. The population of wild animals, including endangered species, is rising in the conservation area. Qilian is important in the fight to protect the ecological environment and biological diversity. (Photo/IC)
Blue-eared pheasants are spotted in the Qilian Mountains nature reserve in Zhangye City, Northwest China's Gansu Province, March 2, 2019. The population of wild animals, including endangered species, is rising in the conservation area. Qilian is important in the fight to protect the ecological environment and biological diversity. (Photo/IC)
European roe deer roam in the Qilian Mountains nature reserve in Zhangye City, Northwest China's Gansu Province, March 2, 2019. The population of wild animals, including endangered species, is rising in the conservation area. Qilian is important in the fight to protect the ecological environment and biological diversity. (Photo/IC)
Bharal - Himalayan blue sheep - in the Qilian Mountains nature reserve in Zhangye City, Northwest China's Gansu Province, March 2, 2019. The population of wild animals, including endangered species, is rising in the conservation area. Qilian is important in the fight to protect the ecological environment and biological diversity. (Photo/IC)
Footprints of a snow leopard are found in a snow field in the Qilian Mountains nature reserve in Zhangye City, Northwest China's Gansu Province, March 2, 2019. The population of wild animals, including endangered species, is rising in the conservation area. Qilian is important in the fight to protect the ecological environment and biological diversity. (Photo/IC)