A flock of female Tibetan antelopes gallop at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope vocally attracts the female for mating at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

Male Tibetan antelopes compete for mating right at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Liu Wenbo)

Male Tibetan antelopes compete for the mating right at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope gallops at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope gallops at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 17, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope gallops at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 17, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope (R) pursues a female one for mating at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope (1st L) pursues a female one for mating at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 17, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

Two male Tibetan antelopes pursue a female one for mating at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope rushes to the female ones at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

Male Tibetan antelopes compete for mating right at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Photo by Tenzin Norbu/Xinhua)

A male Tibetan antelope (1st R) guards its female partners after winning the mating right at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

Rangers patrol to monitor Tibetan antelopes at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 17, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Jiang Fan)

A male Tibetan antelope (L) pursues a female one for mating at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 17, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Xinhua/Liu Wenbo)

A male Tibetan antelope gallops at the Qiangtang National Nature Reserve in the northern part of southwest China's Xizang Autonomous Region, Dec. 16, 2023. Winter is the mating season for Tibetan antelopes living at the Qiangtang National Nature Reserve. The three-week mating season is the only period of time throughout the year when a male antelope is seen together with the female ones. (Photo by Tenzin Norbu/Xinhua)