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一种真菌把果蝇变成了“僵尸” – 译学馆
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一种真菌把果蝇变成了“僵尸”

This Killer Fungus Turns Flies into Zombies | Deep Look

Deep Look
《微观深望》
We like to think we’re in control…that our minds are our own.
我们一般认为自己的意识是由自己控制的
But that’s not true for this fruit fly.
但是对这只果蝇来说则不是
Its brain has been hijacked by another organism
它的大脑已经被其他生物所控制
and it’s not going to end well.
下场就是死亡
It all starts when the fly is innocently walking around,
这源于果蝇在熟果子上毫无戒心地乱跑
sipping on overripe fruit.
吸食汁液
It picks up an invisible fungus spore,
一种能寄生在其皮肤下的无色真菌孢子
which bores under its skin.
悄无声息的进入了它的体内
For a few days, everything seems normal.
开始几天 果蝇都表现得很正常
But inside, the fungus is growing, feeding on the fly’s fat
但体内的真菌正在以其脂肪为食不断生长
and infiltrating its mind.
同时慢慢侵入它的神经
At dusk on the fourth or fifth day,
四五天后的傍晚
the fly gets a little erratic, wandering around.
它有点躁动了 到处乱跑
It climbs to a high place.
它爬上了高处
Scientists call this behavior “summiting.”
科学家称此行为为“登顶症”
Then it starts twitching.
然后它开始抽搐了
The fungus is in control.
真菌控制了它
The fly sticks out its mouthpart
果蝇伸出口器
and spits out a tiny drop of sticky liquid.
吐出一滴粘液

粘液滴
That glues the fly down, sealing its fate.
粘液滴会粘住果蝇 还有它的命运
A few minutes later, its wings shoot up.
几分钟后 果蝇的翅突然立起来
And it dies.
这宣告了它的死亡
Now that the fungus has forced the fly into this death pose
真菌控制果蝇保持死亡姿势
—wings out of the way,
使翅逐渐直立
nothing can stop it.
没有什么能阻止它
It emerges.
然后真菌孢子爆发了
Tiny spore launchers burst out of the fly’s skin.
小孢子发射器从果蝇的皮肤上爆出

孢子 发射器
Hundreds of spores shoot out at high speed,
成百上千个孢子高速喷射出来
catching a breeze if the fly climbed high enough.
若果蝇位于高处 孢子可随微风传播
They’re the next generation of killer fungus.
这些孢子又成长为下一代“夺命真菌”

孢子
It continues for hours, spores flying out.
喷射会持续好几个小时
These flies are in the wrong place at the wrong time.
这段时间内如果有果蝇来到附近就糟了
And if spores land on a wing,
孢子会附着在它们的翅膀上
which they can’t bore into,
但不会钻进去
they shoot out a secondary spore
孢子发射次生孢子
to increase their chances of spreading.
来增加传播的机会

次生孢子
So how does a fungus take control of a brain?
那真菌到底是怎样控制果蝇的大脑的呢?
At Harvard, Carolyn Elya is trying to understand that.
来自哈佛的卡洛琳 ·艾略特正在尝试在弄懂它
She thinks the fungus secretes chemicals
她认为真菌会分泌出一些化学物质
to manipulate the fly’s neurons,
来控制果蝇的神经
maybe stimulating the ones that make flies climb.
可能登顶症也源于此
But don’t worry, the fungus can’t hurt humans.
但是不用担心 这种真菌对人体无害
Scientists have tried to harness its power for our benefit,
科学家试图利用这种真菌的能力来造福人类
to kill flies in our kitchens and farms.
比如消灭厨房和农场中的苍蝇
They haven’t had any luck though.
但研究进展不太顺利
The deadly spores are actually pretty fragile and short-lived.
因为这种致命孢子很脆弱 生命周期也很短
It turns out, this lethal puppet master does only what it needs to for its *own* survival.
事实上致命傀儡师也不过是为了生存罢了
Hi, it’s Lauren again.
大家好 我是Lauren
If you love Deep Look, why not help us grow on Patreon?
如果你喜欢微观深望 快来Patreon上赞助我们吧
We’re raising funds to go on a filming expedition to Oaxaca, Mexico.
我们正在为墨西哥瓦哈卡州探险之旅筹集资金
And for a limited time, we’re sweetening the deal with a special gift.
时间有限 奖品多多 先到先得
Link is in the description.
链接在下文
And if you’re craving more spooky videos,
如果你想看更多惊悚视频
here’s a playlist of our scariest episodes.
这里有一份惊悚系列播放表
Don’t watch ‘em after midnight.
不要在午夜看哦
See you soon.
下期见

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视频概述

一种真菌能控制果蝇的神经,操纵它的行为,同时使它致死,这是为什么呢?那能否以此消灭苍蝇呢?

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视频来源

https://www.youtube.com/watch?v=C2Jw5ib-s_I

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