Although polar bears' locomotion is similarly inefficient, polar bear cubs walk along with their mother.
尽管北极熊的运动能力同样低下，北极熊幼崽还是和妈妈一起前行。
Two polar bear cubs play with rubbish along the Barter Island shore.
两个北极熊幼仔在巴特岛海岸玩垃圾。
Black bear cubs use trees for defense, whereas brown bears and polar bears, which regularly inhabit treeless environments, rely on aggression to protect their cubs.
黑熊幼崽用树来防御，而经常生活在没有树的环境中的棕熊和北极熊则依靠攻击性来保护它们的幼崽。
Churchill, Manitoba, Canada, is home sweet home to this polar bear and her two cubs.
加拿大的马尼托巴湖丘吉尔河是这只北极熊和它的熊宝宝的甜蜜家园。
A stranded female polar bear and mother of two cubs waits for the sea ice to return to be able to hunt.
滞留的雌性北极熊-两个小熊的母亲正在等待可以返回的海冰。
A stranded female polar bear and mother of two cubs waits for the sea ice to return to be able to hunt.
滞留的雌性北极熊-两个小熊的母亲正在等待可以返回的海冰。
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