Well they do know, that if you look at other aquatic 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.
他の水中哺乳類を見ると 腎臓や小腸などの 体壁の中に脂肪がある陸地に住む ほとんどの哺乳類の脂肪は 体壁の外に移り 皮膚の中に広がったのです