SCIENCE STUDY

What are eyebrows really for?

作者：TEENS

眉毛究竟有什么作用？词数 339 建议阅读时间 5分钟

Straight or arched (弯的), thick or thin – eyebrows (眉毛) come in many shapes and sizes. But what are eyebrows even for? They don’t keep us warm like the hair on our head does, so why do we have them at all?

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