1·Leatherbacks do not have blubber, but they do have a reptilian equivalent: thick, oil-saturated skin, with a layer of fibrous, fatty tissue just beneath it.
棱皮龟没有鲸脂，但它们有和爬行类动物相似的结构：厚且含油的皮肤，下面有一层纤维，再下面是脂肪组织。
2·Underneath their fur, polar bears have an additional 10-cm-layer of fat, called blubber.
在毛皮的下面还有一层十厘米厚的脂肪，名为鲸脂。