So their tails and heat-shedding ears shrunk, and they grew thick coats of oily fur.

为适应环境，它们的尾巴和用来散热的大耳朵退化了，毛皮则变得又厚又多脂。

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So their tails and heat-shedding ears shrunk, and they grew thick coats of oily fur.

为适应环境，它们的尾巴和用来散热的大耳朵退化了，毛皮则变得又厚又多脂。

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