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分類：自然
集數：2集
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簡介：每年春天北美洲的西海岸都會迎來的地球上最偉大的一批遊客，經過長達4800公里的艱難跋涉，無以計數的大麻哈魚從太平洋出發回到故鄉的河流中産卵，匯聚到海洋中的河流達數千條，精準的嗅覺卻能幫助它們分辨出故鄉的那一滴水，它們不僅為大量動物提供豐盛的食物而且給所經之處帶來了一片生機。收起
《人與自然》 20110602 自然發現——大麻哈魚洄遊（上）
《人與自然》 20110603 自然發現——大麻哈魚洄遊（下）
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