![Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/f8acfec0f3cc4e3b8851fca78af6b821.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub and its mother at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/20c3d5f439154077a422a3a6b621ae99.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub and its mother at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/5050ebd9267e4f55bb320110cc6f3939.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/0499493c31d040c59eac6641db1e2740.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/ba2b2eb9a1ca4b5aa3973c5037a2cc60.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/a4de7f08787a49df994056750c211f64.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/5c827a1c22c747c1a47278e324f6c7ee.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)
![Photo taken on Feb. 13, 2019 shows a seal cub and its mother at Harbin Polarland in northeast China\'s Heilongjiang Province. Seal \](http://www.ecns.cn/hd/2019/02/14/539ab36c88bb422e8065e7b4accf579f.jpg)
Photo taken on Feb. 13, 2019 shows a seal cub and its mother at Harbin Polarland in northeast China's Heilongjiang Province. Seal "Sha Sha" gave birth to a cub at Harbin Polarland. (Xinhua/Wang Jianwei)