答案看起来是这样的：就因为八月底是阿拉斯加北部的北极熊游向北方的海冰的特定时段，文中这只母熊也正是这样做的。
The answer seems to be that, simply, late August is the period when polar bears in northern Alaska head north on to the sea ice, and that is what she was doing.
亚洲黑熊分布在从伊朗到日本以及东南亚的整个亚洲地区，是世界八大种熊类之一。
Asian black bears are dispersed from Iran to Japan to the whole Southeast Asia, ranking one of eight species of bears around the world.
肉豆蔻赤坂给讲述者讲述了1945年八月被士兵射杀的老虎，猎豹和熊的故事。
Nutmeg Akasaka told the narrator the story of the tigers, the leopards, the wolves, and the bears that were shot by soldiers in August, 1945.
生物学家坐着直升机看到八个死亡的北极熊浮在水面上。
Biologists told me they saw eight dead polar bears floating in the water when they flew over the sea in a helicopter.
有了定好的日程表，每天还要与来自四面八方的人打交道，熊迪对游戏的依赖性正在逐渐减少。
With a daily schedule and a lot interaction with people from all over, Xiong sees his dependence on the game fading.
大家看到了梅显祖带来的枪之后高兴得不行，熊老八让自己的弟弟留下来看山，梅显祖给大家说了行动计划就带着大家上路了。
You see MeiXianZu brought joy after a shot: no, old bear eight made his brother stay and see mountain, MeiXianZu give everyone said action plan would take you on the road.
孔雀山上白孔雀射奇热。剧。网落了熊老八兄弟的信鸽，这才知道黑木蛟为救自己已经下山了。
The show. Nets fall the old bear eight brothers of the pigeons, this just know HeiMu Jiao for save himself has gone down.
然而，这件事情却让马戎派上山的内应熊老八的兄弟泄露给了马戎。
However, this thing to send the mountain but w. connor should bear old eight brothers leaked to the w. connor.
熊老八将自己的父母接上了黑龙山，却将他兄弟留在了险境之中。
Eight old bear their parents connected to the black dragon mountain, but his brother to stay in the risk.
正在这危急时刻，梅贤祖率着熊老八等人前来救援，黑木蛟大喜过望，许诺只要这次能活着回去一定跟梅贤祖拜把子。
Is this a crisis, MeiXian ZuLv old bear such as the eight people who come to the rescue, HeiMu Jiao overjoyed, promise as long as this can back alive to MeiXianZu BaiBaZi.
正在这危急时刻，梅贤祖率着熊老八等人前来救援，黑木蛟大喜过望，许诺只要这次能活着回去一定跟梅贤祖拜把子。
Is this a crisis, MeiXian ZuLv old bear such as the eight people who come to the rescue, HeiMu Jiao overjoyed, promise as long as this can back alive to MeiXianZu BaiBaZi.
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