有趣的是，对于啮齿动物这样的小型哺乳动物来说，岛屿法则被推翻了，因为在岛状环境下，巨大的体型是最受欢迎的。

Interestingly, the island rule is overturned for small mammals such as rodents, for which gigantism is favored under insular conditions.

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例如，1919年，在加拿大温哥华岛附近捕获了一条座头鲸，它有一对长达1米多的腿状附肢，还有完整的整套肢骨。

In 1919, for example, a humpback whale with a pair of leglike appendages over a metre long, complete with a full set of limb bones, was caught off Vancouver Island in Canada.

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有趣的是，对于小型哺乳动物，如啮齿类动物，岛屿规则是相反的，因为在岛状条件下，巨头主义是有利的。

Interestingly, the island rule is reversed for small mammals such as rodents, for which gigantism is favored under insular conditions.

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