Watch "イルカに似た爬虫類"魚竜"の進化史～シロナガスクジラに匹敵する巨大魚竜の発見/海棲爬虫類（海竜）の収斂進化～" - a great video from the 魚 シロ category. Enjoy high-quality streaming with our advanced video player.
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