"The thing is, whales do not have hair, fur or feathers that could offer some protection, and they are forced to surface in order to breathe," co-author Karina Acevedo-Whitehouse told Discovery News.
“问题是，鲸鱼没有用以保护的毛发、毛皮或羽毛，而且它们为了呼吸，要被迫浮出水面，”合著人卡琳娜。阿塞维多·怀特豪斯这样告诉探索频道新闻。
The same muscles puff up the feathers of birds and the fur of mammals on cold days to help keep them warm.
在鸟类中也有同样的肌肉，在冬天它使得鸟的羽毛膨胀，以达到御寒的目的。 哺乳动物也通过毛发来御寒。
The laboratory typically examines fur, hides, feathers, claws, and teeth, both visually and microscopically, to determine what species a body part came from.
这个实验室通常检验毛皮，兽皮，羽毛，爪子和牙齿，包括目检和显微镜检测，来确定它们是从什么物种身上来的。
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