In recent years, Hoh Xil National Nature Reserve, a World Heritage Site in northwest China's Qinghai Province, has continuously strengthened its protection, effectively curbing the poaching of Tibetan antelopes. The population of Tibetan antelopes in the reserve has increased from less than 20,000 to more than 70,000, and the grand migration of Tibetan antelopes reappears on the Qinghai-Tibet Plateau.