This photo taken on June 17, 2023 shows the starry sky near the Zonag Lake in Hoh Xil, northwest China's Qinghai Province. The Zonag Lake region in the Hoh Xil National Nature Reserve boasts splendid views of snow mountains, lakes and grasslands. The region also serves as a vital birthing ground for pregnant Tibetan antelopes who arrive between May and July to deliver their offspring. (Xinhua/Pan Binbin)

This aerial panoramic photo taken on June 17, 2023 shows the Zonag Lake in Hoh Xil, northwest China's Qinghai Province. The Zonag Lake region in the Hoh Xil National Nature Reserve boasts splendid views of snow mountains, lakes and grasslands. The region also serves as a vital birthing ground for pregnant Tibetan antelopes who arrive between May and July to deliver their offspring. (Xinhua/Zhang Hongxiang)

This photo taken on June 17, 2023 shows the starry sky near the Zonag Lake in Hoh Xil, northwest China's Qinghai Province. The Zonag Lake region in the Hoh Xil National Nature Reserve boasts splendid views of snow mountains, lakes and grasslands. The region also serves as a vital birthing ground for pregnant Tibetan antelopes who arrive between May and July to deliver their offspring. (Xinhua/Pan Binbin)

This photo taken on June 17, 2023 shows the Zonag Lake in Hoh Xil, northwest China's Qinghai Province. The Zonag Lake region in the Hoh Xil National Nature Reserve boasts splendid views of snow mountains, lakes and grasslands. The region also serves as a vital birthing ground for pregnant Tibetan antelopes who arrive between May and July to deliver their offspring. (Xinhua/Pan Binbin)

A wild yak is seen near the Zonag Lake in Hoh Xil, northwest China's Qinghai Province, June 18, 2023. The Zonag Lake region in the Hoh Xil National Nature Reserve boasts splendid views of snow mountains, lakes and grasslands. The region also serves as a vital birthing ground for pregnant Tibetan antelopes who arrive between May and July to deliver their offspring. (Xinhua/Zhang Hongxiang)