This aerial panoramic photo taken on Oct. 18, 2023 shows the Ayakum Lake at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 17, 2023 shows a Tibetan blue bear that broke into a protection station of the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows water birds resting on a lake at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows Tibetan wild donkeys foraging on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows a Tibetan gazelle amid snow at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows a wild yak at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows black-necked cranes at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows wild yaks at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 17, 2023 shows Tibetan wild donkeys running on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows Tibetan antelopes amid snow at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows water birds resting on a lake at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 18, 2023 shows Tibetan wild donkeys running on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 18, 2023 shows Tibetan gazelles at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 15, 2023 shows blue sheep foraging on a hill at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows Tibetan wild donkeys foraging on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows Tibetan antelopes foraging at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 13, 2023 shows Tibetan antelopes at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Photo by Shang Peng/Xinhua)

This photo taken on Oct. 14, 2023 shows a wild yak at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Photo by Shang Peng/Xinhua)

This photo taken on Oct. 13, 2023 shows black-necked cranes at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Photo by Shang Peng/Xinhua)

This aerial photo taken on Oct. 18, 2023 shows water birds resting on a lake at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial panoramic photo taken on Oct. 16, 2023 shows a snow-covered fountain at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 17, 2023 shows Tibetan wild donkeys running on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows a wild yak on a snow-covered desert at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 18, 2023 shows the view of a lake, a desert and snow-covered mountains at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 18, 2023 shows a bearded vulture at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows Tibetan wild donkeys amid snow at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 17, 2023 shows a Tibetan blue bear that broke into a protection station of the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 17, 2023 shows the sunrise glow over snow-covered mountains at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows wild yaks on a snow-covered desert at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial stitched photo taken on Oct. 17, 2023 shows the sunrise glow at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 17, 2023 shows the sunrise glow at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows a snow-covered desert at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows water birds resting on a lake at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows the Ayakum Lake and snow-covered mountains at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows a snow-covered fountain at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows Tibetan wild donkeys and wild yaks at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 17, 2023 shows Tibetan wild donkeys running on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 15, 2023 shows the Ayakum Lake and snow-covered mountains at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows Tibetan wild donkeys running on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows Tibetan wild donkeys foraging on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows the sunshine at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows wild yaks on a snow-covered desert at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 16, 2023 shows a snow-covered desert at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 18, 2023 shows Tibetan wild donkeys running on a grassland at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This aerial photo taken on Oct. 17, 2023 shows Tibetan wild donkeys at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows a wild yak at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 18, 2023 shows black-necked cranes at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 18, 2023 shows the Ayakum Lake and snow-covered mountains at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)

This photo taken on Oct. 16, 2023 shows a wild yak on a snow-covered desert at the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. With an average altitude of 4,580 meters, the Altun Mountains National Nature Reserve covers a total area of 45,000 square kilometers.

The reserve is a representative of plateau desert ecosystem in China and is home to a wide variety of rare animals. (Xinhua/Li Xiang)