BBC纪录片《冰冻星球》世界的尽头第7期:狼和野牛代代抗衡

[00:04:01]These bison are even bigger than their southern cousins 这些野牛较其低纬同类体型更大 [00:07:12]and the largest land animals in North America. 是北美洲最大的陆生动物 [00:10:08]For generations, wolves and bison here 狼与野牛在此代代抗衡 [00:13:29]have been shaped by their battles with each other, 于是得以进化 [00:16:51]making each the most impressive of its kind. 成为同物种的佼佼者 [00:22:16]The bison will not stay long among the trees. 野牛不会在林中栖息过久 [00:25:34]They're not safe here. 这里并非安全地带 [00:28:30]The wolves are closing in, 狼群逐渐靠近 [00:35:37]but their chance of ambushing the bison in the woods has passed. 可惜在林中伏击野牛的机会业已丧失 [00:39:18]Their prey are now in the open 猎物已进入空旷区域 [00:41:14]and grouped together for safety. 结伴而行 以保安全 [00:43:13]The wolves will need to work as a team 狼群若想一击成功 [00:49:41]if they are to make a kill. 便需要协作作战 [00:54:24]They circle the herd, trying to unsettle it 它们呈围攻之势 企图扰乱阵脚 [00:56:55]and split it up. 进而各个击破 [00:58:29]But the bison are armed and dangerous. 不过野牛角锋锐利 相当危险 [01:00:49]They will be safe as long as they stick together. 如能互为犄角 便可保持不败 [01:03:17]The wolves up their game, harrying the herd, 狼群让战斗升级 率先挑衅 [01:12:24]a ploy to trigger a stampede 先对牛群进行骚扰 [01:14:15]and split away one of the smaller ones. 从而孤立出一个孱弱者 [01:19:22]The bison form a defensive circle around their young, 野牛们以幼崽为中心 组成防御性外围 [01:22:06]horns pointing outwards. 它们的角朝外

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