干细胞在半数注射后的大鼠耳蜗内存活，它们在内耳内自注射部位向受损区域迁移。

Stem cells injected into the inner ear survived in half of the injured rats, where they migrated away from the site of injection toward the injured region within the inner ear.

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但当一个新的区域得到雨水的补给，哺乳动物就会按一定的顺序向它迁移以利用它。

But when a new area is fueled by rain, the mammals migrate toward it in a set order to exploit it.

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但它们确实可以决定怎样在更多的人迁移进来的同时计划它们的增长，以及它们希望怎样修复需要重建的区域。

But they can definitely determine how they plan to grow as more people move in, and also how they want to rehabilitate areas that need regeneration.

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