Well they do know, that if you look at other aquatic mammals, the fat that in most land mammals is deposited inside the body wall, around the kidneys and the intestines and so on, has started to migrate to the outside, and spread out in a layer inside the skin.
如果你看看水生动物，你就会知道 大部分陆栖哺乳动物的脂肪 贮存在体腔以内 包裹在在肾脏，肠子等内脏之外 这些脂肪满满的向外部移动 均匀分布在表皮之下