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分类：自然
集数：2集
导演：
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简介：德克萨斯州是美国夏季最炎热的一个州，而多年未见的高温使这里变得更加灼热。即使是在往年气温正常的夏天，飞越德克萨斯州对于娇嫩的帝王蝶来说也是严酷的考验。收起
破解胡蝶迁徙之谜的生物学家（上）[人物] 20120220
破解胡蝶迁徙之谜的生物学家（下）[人物] 20120221
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