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企鹅的脚为什么不怕冷? - 知乎
source link: https://www.zhihu.com/question/27543215/answer/609843929
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作为一只帝企鹅，它可以在南极零下几十度的环境下生存。也许你知道企鹅的身体为什么不被凛冽的寒风冻成冰…
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