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  • If a cockroach walked by you right now, would you step on it?

    如果現在有一隻蟑螂從能你面爬過,你會踩死牠嗎?如果你真的這麼做的話我能理解

  • If so, I get it, but you should know cockroaches are cooler than you might think.

    但你知道其實蟑螂比你想像中還要來得更厲害嗎?

  • Hey guys! What’s up? I’m Sapna here at DNews.

    嗨,大家!我是來自DNews的斯帕納,今天我們要來解答

  • Today were answering a question that came from our subreddit page, r slash Dnews.

    一個來自我們新聞網頁的問題,使用者semihc想要知道

  • The usersemihcwants to know if cockroaches have any benefit to nature.

    蟑螂對於自然界是否存在著任何益處?

  • Well yes they do, Semi! Despite their bad reputation, most roaches play an important role in the natural world.

    他們當然有為自然界帶來好處,儘管他們的名聲非常的不怎麼樣 但蟑螂在自然界中扮演著重要的角色,

  • And we humans may even be able to learn a thing or two from these resilient creepy creatures.

    人類自身可能還能從這些適應力強且令人頭皮發毛的生物上學到一兩件事呢

  • I know it’s tough to see cockroaches as anything but awful.

    我知道看到蟑螂除了厭惡之外很難有其他的想法了

  • And no matter what we do to try and get rid of them, they often outsmart us.

    我知道看到蟑螂除了厭惡之外很難有其他的想法了

  • For example, cockroaches eat pretty much anything:

    只會想想盡辦法擺脫牠們,但牠們其實比我們還聰明,舉例來說,蟑螂無所不吃

  • your leftover steak, the soap scum in your bathtub, even the glue on an envelope, which is actually pretty incredible.

    例如,你吃剩的牛排、殘留在浴缸的浮垢,甚至是信封上的膠水

  • Roach poison takes advantage of that, and tastes sweet to the little buggers, they eat it and die.

    都令人感到非常的不可思議,這也有利於殺蟑劑的使用,殺蟑劑對蟑螂來說

  • But according to a recent study in the journal "Science," some cockroaches evolved new body chemistry so the poison no longer tastes good, thus no snack and no death.

    嚐起來是帶有甜味的,蟑螂吃了吃後就會死亡,但根據 近期的一份科學學刊指出,蟑螂在誤吃殺蟑劑後,身體會開始進化,如此一來

  • 進化產生新的身體之後,殺蟑劑便無法繼續存在於蟑螂體內,蟑螂也不會就此死亡

  • Most people think of cockroaches as household pests,

    大多數的人認為蟑螂屬家居害蟲,但其實世界上

  • but there are actually about 4500 different species of cockroaches around the world.

    蟑螂的品種約有4500種,其中只有1%的蟑螂屬

  • And less than 1% of them are the freaky ones that scatter when we turn on the lights.

    一見到光線就會逃跑的蟑螂,那些存在於家中的蟑螂

  • Those in our homes are often covered in bacteria and fecal matter; it sticks to them, they ingest it, and defecate everywhere.

    身上常帶有細菌和糞便,這些物質會黏在身上,牠們會將它消化後到處排放

  • And proteins in their feces, saliva, and eggs are one of the biggest causes of allergies and asthma for people living in urban environments.

    對於那些居住於都市環境中的人來說, 存在於牠們排泄物、唾液和蟲卵中的蛋白質

  • I know it's gross.

    為其中一個造成過敏和氣喘的最大主因

  • And maybe that’s more than you wanted to know about cockroach feces, but beyond the cities where we live, it gets better!

    蟑螂排泄物中的奧秘可能比你知道的還要多很多

  • Cockroach poop is actually beneficial to the environment! It plays a role in the earth’s nitrogen cycle.

    在我們居住環境之外的地方,則相反,牠們對於環境來說是絕對有益處的

  • Forest roaches consume decaying organic matter and release its nitrogen back into the soil through their feces so it can be used again by plants.

    牠們在土壤的氮循環扮演著其中一個角色,森林裡的蟑螂會吃下腐壞的有機物質

  • 並透過排泄物將氮氣釋放回土壤裡

  • 如此一來,該氮氣就能再次提供植物利用

  • Most cockroaches, 99.7% of them, live far away from people, mostly in wooded areas.

    大部份的蟑螂,也就是99.7%的蟑螂,都居住於遠離人群的地方,大部份都居住於林地裡

  • And they actually do some good in the world.

    實際上牠們是真的有為世界的帶來益處的,

  • In some environments, they serve as pollinators for flowers.

    在某些環境之中,牠們扮演著傳粉者的角色

  • And by consuming the decaying vegetation, the microbes inside their gut

    透過吃下的腐爛植物,腸子內的微生物會分解植物體

  • break down plant materials that are often indigestible by most mammals,

    而這種植物體,對於哺乳動物來說,是會直接消化掉的

  • which is why some experts call cockroaches nature's janitors or decomposers.

    這也就是為什麼有些專家會將蟑螂稱之為大自然的清潔工或分解者

  • Now, roaches are also an important source of food for some species, like centipedes, lizards, and birds.

    蟑螂對於某些生物物種來說,也扮演者重要的食物來源角色,例如:蜈蚣

  • And at least one species of wasp couldn't live without the cockroach.

    蜥蜴和鳥類,至少有一種蜜蜂種類

  • I think this is really cool!

    沒有蟑螂是無法存活的,我認為這是非常酷的,扁頭泥蜂透過蜂螫

  • So, the parasitic emerald wasp stings a cockroach and injects venom into a specific part of its brain which blocks voluntary movement.

    將毒液注射至蟑螂頭部的特定部位,該毒液會使腦部短暫麻痺,也因此可短暫控制蟑螂的行動

  • The wasp then leads this zombie roach back to its burrow, lays an egg on it,

    接著扁頭泥蜂會引導有如喪屍般的蟑螂返回巢穴,並在蟑螂身上下蛋

  • and when that egg hatches, the larva eats the roach from the inside out and emerges as a mature wasp.

    卵孵化之後,幼蟲鑽入蟑螂體內,以蟑螂為食,並於成型時鑽出體外

  • I know it’s disgusting, but isn’t that awesome?

    我知道聽起來有點噁心,但還是很厲害吧?

  • Cockroaches can help humans too, by the way.

    順帶一提,蟑螂對於人類也是有益處的,因為存在於骯髒環境裡的牠們

  • Because they survive in the filthiest of conditions, their central nervous system produces natural antibiotics.

    中樞神經能製造天然的抗體,而我們發現,蟑螂天生的防禦行為

  • We've found that their natural defenses work even against antibiotic-resistant bacteria like staph aureus, also known as MRSA.

    甚至能對抗耐抗生素細菌,例如:金黃色葡萄球菌,又稱耐甲氧西林金黄色葡萄球菌

  • And scientists at Harvard's Biorobotics Laboratory are studying the legs of cockroaches, too.

    哈佛仿生機器人實驗室的科學家們也正在對蟑螂的四肢進行研究

  • Cockroach legs are not only springy and flexible, but they also work together seamlessly so the

    蟑螂的四肢不僅具彈性又靈活,且能同時完美地配合活動

  • insect can run at really fast speeds on uneven ground.

    這也就是牠們在不平坦地面依舊能跑那麼快的原因,藉由這些進化優勢的複製

  • By copying these evolutionary advantages, scientists hope to design new prosthetics and mechanical hands!

    科學家希望能設計出新的義肢和機械手

  • So there you go "Semihc," we love your question. And yes, cockroaches really do play an important role in our ecosystem.

    這些就是你要的答案了Semihc,我們很喜歡你的問題

  • 而且問題的答案是 沒錯,蟑螂在我們的生態系統中扮演著重要的角色

  • And get this, engineers are actually turning roaches into robots.

    而且科學家們也正致力於將蟑螂轉換成機器人呢

  • You can see how and why in this video.

    從這則影片中就能發現

  • The remote control doesn’t tap into the brain per se, because the cockroach doesn’t navigate with eyes in the same way we do,

    所以遙控器並不會自己選擇頻道

  • 因為蟑螂不像我們一樣能操控眼睛

  • but it uses its antennae to feel for the walls or their predators.

    但牠們會利用觸鬚去感受牆壁或捕食者

  • This package stimulates the nerves in their antennae so the roach thinks that there’s a wall coming or harm,

    觸鬚內部會刺激神經

  • 讓蟑螂能感受到前方是否有牆壁或危險

  • and it causes it to turn to the direction the controller wants.

    也能讓牠們變換爬行方向

  • So what do you think about cockroaches, now? Tell us down in the comments section down below.

    現在你對於蟑螂的看法如何呢?在下面評論區留言讓我知道吧

  • And don't forget to click subscribe!

    別忘了點選頻道訂閱

  • And if you have any other questions let us know on our subreddit page at r slash Dnews.

    如果你還有其他問題,請到我們的網站:r/Dnews讓我們知道

  • Thanks for watching.

    謝謝觀賞

If a cockroach walked by you right now, would you step on it?

如果現在有一隻蟑螂從能你面爬過,你會踩死牠嗎?如果你真的這麼做的話我能理解

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C1 高級 中文 蟑螂 排泄物 扮演 角色 自然界 環境

為什麼還會有蟑螂存在? (Why Do Cockroaches Even Exist?)

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    Vivi Lee 發佈於 2021 年 01 月 14 日
影片單字