This was the first successful nuclear transplant involving cells of a warm-blooded animal.

这是温血动物细胞核移植试验的首次成功。

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However, the bear is a kind of warm-blooded animal. It sleeps in winter just because it doesn't have enough food. Whenever it feels hungry, it will wake up to eat.

而熊是恒温动物，冬眠是由于缺少食物，一旦自身感觉到饥饿或脂肪流失，就会醒来吃食，补充能量。

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You're creating heat If you're a warm-blooded animal.

如果你是温血动物,你会产生热量。

麻省理工公开课 - 热力学与动力学课程节选