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看到蜻蜓幼虫的嘴会让你做噩梦 – 译学馆
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看到蜻蜓幼虫的嘴会让你做噩梦

A Baby Dragonfly's Mouth Will Give You Nightmares | Deep Look

本集”微观深望”是由CuriosityStream为您带来
This episode of Deep Look is brought to youby CuriosityStream.
这些致命的捕手统治天空已超过三亿年
For over 300 million years, these lethal hunters have ruled the skies.
它们就是蜻蜓目
They’re the order Odonata.
我们大多熟知蜻蜓和豆娘
That’s dragonflies and damselflies to mostof us.
甚至在恐龙出现前 他们就有了两对翅膀
Before the dinosaurs even existed, they had a two-foot wingspan,
就像一只小老鹰
like a small hawk.
今天它们的体积更小 但杀伤力依旧
Today they’re more modest in scale, butno less deadly.
快看它们的眼睛
Take their eyes.
每一个微小的六边形结构都能捕捉光线
Each tiny hexagonal cell picks up light
无论光从是哪个方向来的
from a different direction, which gives dragonflies
这样的构造给了蜻蜓近360°的视角
an almost-360-degree range of vision.
四只翅膀帮助它们盘旋或者灵巧地转弯
Four wings help them hover, or turn on a dime.
这就是说这些捕手们很少迷失方向
That means this hunter rarely misses.
奇怪的是蜻蜓们将它们生命中的绝大部分时间花费在
The weird thing is Odonata spend most of their lives
那些它们飞行技能
in a place where these killer piloting
用不上的地方
skills don’t help.
这里就是它们的母亲产卵的地方
This is where their mothers lay their eggs.
在它们处于孵化期时
When they hatch,
它们的宝宝叫做卵或者稚虫将在水下生活数月甚至数年
the babies – called larvae or nymphs – spend months or years underwater.
它们的翅膀还在发育
Their wings are still growing,
所以翅膀对它们的觅食没有任何帮助
so they aren ’ t any help in scoring a meal …
列如这只可口的蚊子幼虫
like this tasty mosquito larva.
这里是虫虫相吃的世界
It’s a larva-eat-larva world down here.
你看到了吗
Did you see that?
让我们慢镜头回放
Let’s slow it down.
那只蜻蜓幼虫有一个极危险的嘴唇 称为下唇面罩
The nymph has a killer lip, called a labium.
让你想起来这个可怕的东西了吗
Remind you of this creepy thing?
对于这只浮在水面的幼虫来说 它的形状就像是一把叉子
For this skimmer nymph it’s shaped likea spork.
只有蜻蜓和豆娘的幼虫有这种特殊的嘴唇
Only dragonfly and damselfly nymphs have thisspecial lip.
有一种蜻蜓种类 叫做大蜻蜓 能给我们带来额外的惊喜
This kind of dragonfly nymph, a darner, hasan extra surprise.
它们的颚下有一对钳子
There’s a pair of pincers right at the end.
这一切都发生在极短的时间内
It all happens in a fraction of a second.
将这样的嘴唇想象成一把刀子
Think of the lip as a knife,
叉子和盘子三者融为一体
fork and plate all rolled into one.
用餐后 它的唇会整整齐齐的折叠起来
When the meal is over, it folds up neatly,
随时准备着下一场战争
ready for the next occasion.
那些蚊子宝宝就没有这样的机会了
These baby skeeters don’t stand a chance.
当然 那样对我们人类很好
And that’s good for us.
让我们期待蜻蜓们在今后的几百万年里能持续这样的捕食方式
Let ’ s hope it stays this way for a few million more years.
这一集是由CuriosityStream为您带来
This episode is brought to you by CuriosityStream,
订阅后我们将提供
a subscription streaming service that offers
纪录片和真实的标题
documentaries and non-fiction titles from some
它们来自世界上顶级的制片人 其中包括
of the world ’ s best filmmakers, including
独家的美图
exclusive originals.
想要了解更多关于蜻蜓或者其他昆虫的知识吗
Want to learn more about dragonflies and otherinsects?
CuriosityStream的视频系列”昆虫解剖”将调查昆虫是怎么进化
CuriosityStream’s video series “InsectDissection” investigates how insects evolved
直到统治我们的世界
to dominate our world.
要获得其无限制访问权限 及两个月的免费体验
To get unlimited access and your first two months free,
就来curiositystream.com/deeplook注册吧
sign up at curiositystream.com/deeplook
还可以在注册过程中使用优惠代码
and use the promo code deeplook during thesign-up process.
大家好
Hi there.
又是我 劳伦
It’s Lauren again.
如果你对蜻蜓的历史感兴趣
If you ’ re curious about the history of dragonflies,
请关注Eons我们最新的科学频道
check out Eons, the newest science channel
它加盟了PBS数字工作室网络
to join the PBS Digital Studios network.
这周Eons将带我们穿越到巨大昆虫的时代
This week, Eons travels back in time to the age of giant insects.
最后 一定要去看看PBS的无尽系列
And make sure to visit PBS Infinite Series,
这是与数学相关的节目
a show about the mathematics that underpins
那令人迷惑又引人入胜的世界中一切的理论支架
everything in this puzzling, yet fascinating,universe.
谢谢观看
Thanks for watching.

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视频概述

关于蜻蜓的常识

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收集自网络

翻译译者

_ C_

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审核员 GK

视频来源

https://www.youtube.com/watch?v=EHo_9wnnUTE

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