a grizzly bear. 一只灰熊

121. Only now can mountaineers reclaim the upper reaches.
     山地动物只有此时才能 向更高的地方拓展疆土
122. Two miles up the crumbling precipices seem devoid of life.
     两英里高的碎石崖上 似乎不可能有生命存在
123. But there are animals here -
     可是那里仍有动物
124. a grizzly bear.
     一只灰熊
125. It seems to be an odd creature to find on these high rocky slopes.
     很奇怪这样的动物为何 会爬到如此高的碎石斜坡上
126. It's hard to imagine what could have attracted it here.
     真不知道这里有什么吸引着它
127. At this time of the year bears should be fattening up for the winter.
     在每年的这个时候 熊必须为越冬储备脂肪

来自《行星地球 第一季 第二集 Planet Earth S01E02 山地》第 124 行