![Photo taken on Jan. 20, 2019 shows yaks on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/a70084290dff4205af730d24154f7c60.jpg)
Photo taken on Jan. 20, 2019 shows yaks on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)
![Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/b262296aa98d46f5b7cc560fa625ed99.jpg)
Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)
![Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/170caf037218408e9c8f4115b29a7678.jpg)
Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)
![Photo taken on Jan. 20, 2019 shows horses on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/ab10405ec1434e16acb4969459813225.jpg)
Photo taken on Jan. 20, 2019 shows horses on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)
![Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/c7ede3c21ba54a5a84b137ba8a9f7840.jpg)
Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)
![Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/598dad11c8054d02aba95c18589e88fd.jpg)
Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)
![Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China\'s Gansu Province. (Xinhua/Wang Chao)](http://www.ecns.cn/hd/2019/01/21/54e60fcc87e7401cae7f106a40fafd9a.jpg)
Aerial photo taken on Jan. 20, 2019 shows a herd of horses running on the snow-covered grassland at a horse ranch in Shandan County of Zhangye City, northwest China's Gansu Province. (Xinhua/Wang Chao)