A drone photo taken on Nov. 4, 2025 shows milu deer at Qingtongxia Reservoir Wetland Nature Reserve, northwest China's Ningxia Hui Autonomous Region. The Qingtongxia Reservoir Wetland Nature Reserve, covering a total area of 174.93 square kilometers, is the largest Yellow River tidal flat wetland in Ningxia. In September 2024, 35 milu deer were introduced to the reserve. By now, six milu deer cubs were born at the reserve. (Xinhua/Yang Zhisen)

A milu deer cub is pictured at Qingtongxia Reservoir Wetland Nature Reserve, northwest China's Ningxia Hui Autonomous Region, Nov. 4, 2025. The Qingtongxia Reservoir Wetland Nature Reserve, covering a total area of 174.93 square kilometers, is the largest Yellow River tidal flat wetland in Ningxia. In September 2024, 35 milu deer were introduced to the reserve. By now, six milu deer cubs were born at the reserve. (Xinhua/Yang Zhisen)

Milu deer are pictured at Qingtongxia Reservoir Wetland Nature Reserve, northwest China's Ningxia Hui Autonomous Region, Nov. 4, 2025. The Qingtongxia Reservoir Wetland Nature Reserve, covering a total area of 174.93 square kilometers, is the largest Yellow River tidal flat wetland in Ningxia. In September 2024, 35 milu deer were introduced to the reserve. By now, six milu deer cubs were born at the reserve. (Xinhua/Yang Zhisen)

Milu deer are pictured at Qingtongxia Reservoir Wetland Nature Reserve, northwest China's Ningxia Hui Autonomous Region, Nov. 4, 2025. The Qingtongxia Reservoir Wetland Nature Reserve, covering a total area of 174.93 square kilometers, is the largest Yellow River tidal flat wetland in Ningxia. In September 2024, 35 milu deer were introduced to the reserve. By now, six milu deer cubs were born at the reserve. (Xinhua/Yang Zhisen)

A drone photo taken on Nov. 4, 2025 shows milu deer at Qingtongxia Reservoir Wetland Nature Reserve, northwest China's Ningxia Hui Autonomous Region. The Qingtongxia Reservoir Wetland Nature Reserve, covering a total area of 174.93 square kilometers, is the largest Yellow River tidal flat wetland in Ningxia. In September 2024, 35 milu deer were introduced to the reserve. By now, six milu deer cubs were born at the reserve. (Xinhua/Yang Zhisen)

A drone photo taken on Nov. 4, 2025 shows milu deer at Qingtongxia Reservoir Wetland Nature Reserve, northwest China's Ningxia Hui Autonomous Region. The Qingtongxia Reservoir Wetland Nature Reserve, covering a total area of 174.93 square kilometers, is the largest Yellow River tidal flat wetland in Ningxia. In September 2024, 35 milu deer were introduced to the reserve. By now, six milu deer cubs were born at the reserve. (Xinhua/Yang Zhisen)