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分類：自然
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簡介：德克薩斯州是美國夏季最炎熱的一個州，而多年未見的高溫使這裡變得更加灼熱。即使是在往年氣溫正常的夏天，飛越德克薩斯州對於嬌嫩的帝王蝶來説也是嚴酷的考驗。收起
破解胡蝶遷徙之謎的生物學家（上）[人物] 20120220
破解胡蝶遷徙之謎的生物學家（下）[人物] 20120221
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