水獺(otter)吃魚，但不會築壩築堤。會築堤的是河狸(beaver)，但它們隻吃樹幹樹枝。

來源: 刀爺爺於 2016-11-21 10:22:37 [舊帖] [給我悄悄話] 本文已被閱讀：次

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