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  • - [Narrator] There's a creature scurrying

    - [旁白]有一個生物亂竄。

  • across your face right now. Yes, you,

    在你的臉上,現在。是的,你。

  • and at some point, maybe now, maybe in a few days,

    而在某些時候,也許是現在,也許是幾天後。

  • it's going to find a nice cozy pore in your skin

    它將在你的皮膚上找到一個舒適的毛孔

  • and lay a single enormous egg.

    併產下一個巨大的雞蛋。

  • Meet the face mites. They're smaller than a grain

    見識一下面蟎。它們比一粒糧食還小

  • of sand, are a kind of arachnid like spiders,

    的沙子,是一種像蜘蛛一樣的蛛形動物。

  • and they feast on the oil and cells in your skin,

    它們以你皮膚中的油脂和細胞為食。

  • particularly on your oily nose, cheeks, and forehead.

    特別是在你的油性鼻子、臉頰和額頭上。

  • Scientists suspect they've been living on us

    科學家懷疑它們一直生活在我們身上。

  • since the dawn of humanity over 200,000 years ago,

    自20多萬年前人類誕生以來。

  • and today, studies suggest practically every adult

    今天,研究表明,幾乎每個成年人

  • on the planet has thousands of them.

    在這個星球上有成千上萬的人。

  • Odds are you've been living with them your whole life.

    估計你這輩子都和他們生活在一起了。

  • Babies quickly get them from their parents

    嬰兒很快就會從父母那裡得到它們

  • a few days after birth, and once those face mites

    出生後幾天,一旦這些面蟎

  • are on you, the only thing they enjoy as much

    在你身上,唯一的事情,他們享受一樣多

  • as slurping oil and nutrients from your pores is

    因為從毛孔中吸取油脂和養分的方法是

  • having sex all over your face.

    在你臉上做愛。

  • Afterwards, females burrow deep

    之後,雌性就深埋於地下

  • into your pores where they lay their eggs.

    進入你的毛孔,它們在那裡產卵。

  • The eggs end up in one of two places

    雞蛋最終會落入兩個地方之一

  • depending on the species of face mite.

    根據面蟎的種類不同。

  • The first species, called Demodex folliculorum,

    第一個種,叫Demodex folliculorum。

  • lays its eggs in your hair follicle,

    在你的毛囊中產卵。

  • while the second prefers nesting in your sebaceous glands.

    而第二種則更喜歡在你的皮脂腺裡築巢。

  • And in under two weeks, the babies hatch,

    不到兩週,寶寶就孵化出來了。

  • mate, lay their own eggs and die,

    交配,自己產卵,然後死亡。

  • leaving behind a pile of decomposing corpses.

    留下一堆腐爛的屍體。

  • Now, you can wash some of this off,

    現在,你可以洗掉一些這個。

  • but you'll never eradicate them completely

    但你永遠也無法完全消除它們。

  • because even if you treat them with antibiotics,

    因為即使你用抗生素治療他們。

  • they'll return in about six weeks, tops.

    他們會在大約六週內返回,最多。

  • You'll pick them up from towels, pillows,

    你會從毛巾、枕頭上撿到它們。

  • and your loved ones.

    和你的親人。

  • Well, that all sounds horrific,

    嗯,這一切聽起來很可怕。

  • but usually face mites are harmless.

    但通常面蟎是無害的。

  • They only become a problem when they multiply

    只有當它們繁殖的時候才會成為問題

  • out of control. This can happen in people

    失控。這可能發生在人身上

  • with an impaired immune system.

    免疫系統受損的情況下。

  • It's also been seen in people with a painful skin

    也有的人出現了皮膚疼痛的情況。

  • condition called rosacea.

    稱為酒糟鼻的情況。

  • Normally, you'll have around one or two mites

    一般來說,你會有一兩隻蟎蟲。

  • per square centimeter of skin,

    每平方釐米的皮膚。

  • but one study found that people with rosacea

    但一項研究發現,有酒渣鼻的人。

  • had 10 times the normal amount.

    了正常數量的10倍。

  • Believe it or not, in some cases,

    不管你信不信,在某些情況下。

  • face mites can be useful.

    臉上的蟎蟲可以有用。

  • Researchers can actually study your face mites

    研究人員其實可以研究你的面部蟎蟲

  • to learn about your ancestors.

    來了解你的祖先。

  • You see, most mites often stay within a community.

    你看,大多數蟎蟲經常呆在一個社區內。

  • So over time, they've evolved into distinct lineages

    所以隨著時間的推移,它們已經進化成了不同的血統。

  • in different geographic regions, and by comparing

    在不同的地理區域,並通過比較。

  • their DNA, scientists can trace how different groups

    科學家們可以追蹤不同群體的DNA

  • of humans migrated across the world.

    的人類遷徙到世界各地。

  • For example, a study found that European mites

    例如,一項研究發現,歐洲蟎蟲。

  • genetically diverged from East Asian mites

    蟎類

  • around 40,000 years ago.

    大約在4萬年前。

  • That's the same time European and East Asian humans

    那是歐洲人和東亞人的同一時間。

  • parted ways. Pretty handy.

    分道揚鑣了。很方便。

  • So when it comes down to bugs crawling all over you,

    所以當你身上爬滿蟲子的時候。

  • it could be a lot worse.

    這可能是一個更糟糕的。

- [Narrator] There's a creature scurrying

- [旁白]有一個生物亂竄。

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B2 中高級 中文 皮膚 研究 雞蛋 情況 科學家 毛囊

在你臉上下蛋的蟲子。 (The Bugs That Lay Eggs In Your Face)

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    林宜悉 發佈於 2020 年 10 月 29 日
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