Reindeer breeding base in Yue'anli Forest Farm in Inner Mongolia

A herd of reindeer roam in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Li Renzi)

Forester Zhang Guohua replenishes fodder for reindeer in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Yu Yang)

Foresters transport food and water to the reindeer breeding base in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Yu Yang)

Forester Wang Liang prepares lunch in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Yu Yang)

Photo taken on Sept. 18, 2018 shows a herd of reindeer roaming in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Yu Yang)

Gu Gejun (R), a vet from Olguya Township, checks the health conditions of reindeer in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Yu Yang)

Photo taken on Sept. 18, 2018 shows the reindeer breeding base in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Zou Yu)

Forester Zhang Guohua feeds reindeer in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Dec. 23, 2017. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Li Renzi)

A staff member transfers water for daily use from a river in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Li Renzi)

Forester Zhang Guohua takes care of reindeer in Yue'anli Forest Farm of Genhe forestry bureau in the Greater Khingan Mountains of north China's Inner Mongolia Autonomous Region, Sept. 18, 2018. Staff members at Yue'anli Forest Farm are responsible for the conservation and breeding work of reindeer in China. (Xinhua/Yu Yang)