Aerial photo taken on May 25, 2021 shows a view of Ngoring Lake in the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province. Sanjiangyuan, meaning the "source of three rivers," is home to the headwaters of the Yangtze, Yellow and Lancang rivers. The ecological system has been steadily improving in recent years in the Sanjiangyuan National Park, making it a habitat of an increasing number of wild animals. [Photo/Xinhua]
Aerial photo taken on May 25, 2021 shows a view of Ngoring Lake in the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province. [Photo/Xinhua]
A Tibetan antelope is seen at the source of the Yellow River section of the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province, May 25, 2021. [Photo/Xinhua]
A Tibetan fox is seen at the source of the Yellow River section of the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province, May 25, 2021. [Photo/Xinhua]
An eagle is seen at the source of the Yellow River section of the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province, May 25, 2021. [Photo/Xinhua]
A herd of Tibetan donkeys are seen at the source of the Yellow River section of the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province, May 25, 2021. [Photo/Xinhua]
Two Tibetan donkeys are seen at the source of the Yellow River section of the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province, May 25, 2021. [Photo/Xinhua]
A Tibetan donkey is seen at the source of the Yellow River section of the Sanjiangyuan National Park in Golog Tibetan autonomous prefecture of Northwest China's Qinghai province, May 25, 2021. [Photo/Xinhua]
