我们发现，类似于它们最近的近亲棕熊一样，北极熊是无法把它们的代谢率降低到我们所知的冬季冬眠时的标准的。

Wee found that polar bears — like their nearest relatives the brown bears — are incapable of reducing their metabolic rate to the level that we see during winter hibernation.

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我们发现，类似于它们最近的近亲棕熊一样，北极熊是无法把它们的代谢率降低到我们所知的冬季冬眠时的标准的。

Wee found that polar bears — like their nearest relatives the brown bears — are incapable of reducing their metabolic rate to the level that we see during winter hibernation.

youdao