The baby whale develops a thick layer of blubber to protect it from the cold sea.
幼鲸长出一层厚脂肪以抵御冰冷的海水。
Whereas dolphins and whales rely on thick blubber to help keep warm in cold water, fur seals and sea otters depend on dense fur to trap a layer of air against their bodies.
在寒冷的水域中，海豚和鲸鱼依靠它们厚厚的脂肪进行保暖，而海狗和海獭则依赖于它们那稠密的皮毛来留住空气层。
Whereas dolphins and whales rely on thick blubber to help keep warm in cold water, fur seals and sea otters depend on dense fur to trap a layer of air against their bodies.
在寒冷的水域中，海豚和鲸鱼依靠它们厚厚的脂肪进行保暖，而海狗和海獭则依赖于它们那稠密的皮毛来留住空气层。
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