polar bear cubs , Moscow Zoo. 小北極熊，莫斯科動物園。

(AP Photo/Alexander Zemlianichenko) Alexander Zemlianichenko / The Associated Press
- The Washington Post http://www.washingtonpost.com/2012/03/14/gIQAo9nrPS_photo.html

Polar bear cubs venture into the snow for the first time - National News - News - Videos & Pics - Gazette Live http://www.gazettelive.co.uk/multimedia/news/national-news/2012/03/13/polar-bear-cubs-venture-into-the-snow-for-the-first-time-84229-30524611/

Polar bear cub does yoga at Moscow Zoo | Mail Online http://www.dailymail.co.uk/news/article-2144200/Polar-bear-cub-does-yoga-Moscow-Zoo.html

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