长久以来，人们一直在怀疑宇宙中是否存在其他的智慧生命形式。然后，为什么我们不首先在我们的海洋里找寻一下呢？鲸鱼和海豚，同人类一样有着巨大的大脑，善于学习新的行为，拥有自己的社交语言。我们渴望了解，它们
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7.0 全6集
An astonishing six-part series that brings to life the most incredible creatures that ever existed.
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In this fascinating documentary, historian Bettany Hughes travels to the seven wonders of the Buddhi
全8集
英国BBC电视台耗时5年制作的纪录片《冰冻地球》于近期推出。这部耗资巨大的纪录片用镜头真实的展现了正在逐渐溶解的地球两极，以及生活在这里的各种生物，片中种种景象让人叹为观止。纪录片的解说员大卫·艾登.
7.0 高清
Cars! Film! Cars on film! Film involving cars! You get the idea. It&#39;s basically a DVD involving
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我们有史以来第一次以如此清晰的方式，目睹胚胎在一个月大到十星期大这个过程中的面部形成过程——直到这个过程结束，胚胎的体积也还只有一颗菜豆那么大。不过，更令人震惊的或许是影片本身——在子宫中，人类的“变