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自然界中哪种昆虫叫的最响? – 译学馆
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自然界中哪种昆虫叫的最响?

The Loudest Bugs in the World

[片头]
[ INTRO ]
你能发出多少种不同的动物叫声?
How many different animal sounds can you make?
我会像鸭子一样嘎嘎叫 或者像母牛一样哞哞叫
I like to quack like a duck, or moo like a cow.
而吱吱真的很擅长……
And Squeaks is really good at …
[尖叫声]
[Squeaks squeaks]
像老鼠一样吱吱叫
Squeaking like a rat!
很多动物会发出声音 在夏天
Lots of animals make noises, and in the summer,
我会听到我最喜欢的动物的叫声
I like to listen for one of my favorite animal sounds.
你能猜出是什么动物发出的声音吗?
Can you guess what animal it comes from?
[蝉鸣]
[Cicada Call ]
这噪音确实听起来很响
This noise does sound loud,
我想 你可能会认为 这叫声来自一只大动物
so I can see why you would think it comes from a big animal.
但这只动物骗了你 吱吱!
But this animal tricked you, Squeaks!
发出这种声音的动物比我的手还小
The animal that makes this noise is smallerthan my hand.
它是一只蝉
It’s a cicada.
蝉是一种存在于
Cicadas are a type of insect that live all
全世界的昆虫 它们因
over the world, and they ’ re famous for the
在炎热天气时发出的噪音而闻名
noises they make when it’s hot out.
不过 很多人只听到蝉声
A lot of people only hear the cicadas, though,
却从未真正看到过它们
and never actually see them
它们不是很大的昆虫
They’re not very big insects,
许多蝉用伪装来融入
and many cicadas use camouflage to blend
树木和植物
in with trees and plants.
但你能通过他们的
But you can recognize them
大眼睛和背上的透明翅膀认出他们
by their big eyes and clear wings that lie across their back.
和人类相比蝉看起来很小 甚至和吱吱相比也很小
Cicadas may be small compared to humans, or even Squeaks,
但他们却仍然能发出
but they still make some of
世界上最大的动物叫声
the loudest animal sounds in the world.
[吱吱叫给人留下深刻印象]
[Squeaks is impressed]
有一个很好的理解是
And there’s a very good reason why!
我们在树上看到的那些蝉
Those cicadas we see in the trees?
事实上它们在自己生命中来说已经很老了
They’reactually pretty old for insects, but they’ve
它们几乎一生都在地下度过
spent almost all of their lives underground.
一只幼蝉要13或17年才能长大
It takes a baby cicada either 13 or 17 years to grow up,
在成长的过程中
and while they ’ re growing, they
它们呆在安全的地下
stay underground where it ’ s safe
远离可能会吃它们的捕食者
from predators that might want to eat them. Then,
当它们长的足够大 外面变暖了的时候
when they ’ re old enough and it gets warm outside,
它们终于爬出地底
they fiiiinally crawl up out of the ground.
你能想象 它们待在黑暗的地底下多年
Can you imagine seeing the world for the first time
第一次看到这个世界的感觉吗?
after years underground in the dark?
但问题是 一旦蝉从地底出来
The thing is, once they come up above the ground,
它们就活不了多久了
cicadas don ’ t live for very long
——通常只有几个星期的寿命
— usually just a few weeks.
它们真的很想再找一只蝉生更多的蝉宝宝
They reallywant to find another cicada to have more cicada
但他们又不得不速战速决
babies with, but they have to do it quickly!
因此雄蝉发出非常大的声音
So the male, or boy cicadas make a REALLY loud noise.
这样雌蝉就会知道它们在那里
so the female, or girl cicadas will know they’re there.
但蝉发声的方式和其他动物有点不同
But cicadas make noises a bit differently from how other animals do.
例如 如果我想制造噪音
For example, if I wanted to make a loud noise,
我会用我的声音大喊
I could use my voice and shout — although
尽管我并不会这样做
I won ’ t,
我们只通过身体内部来发声
since we only use our inside voices in the Fort.
但是蝉并不能像我们一样用嘴巴来发声
But cicadas can ’ t make noises with their mouths the way we do. Instead,
反而 它们利用一个特别的部位
they use a special body part,
也被称为鼓室 来制造声音
called a tymbal, to make their sound.
蝉有两个鼓室 分别在身体的两侧
Cicadas have two tymbals, one on each sideof their body.
每一个鼓室都由一层很薄的膜构成
Each tymbal is made of a a very thin material called a membrane.
在鼓室里面 有一些更厚的薄膜
Along the tymbal, there are stripes of thicker membrane,
在蝉的两侧形成像肋骨一样的东西
creating what look like ribs down the cicada’s side.
当蝉想制造噪音时
When the cicada wants to make noise,
它们会将鼓室的肋骨快速地靠在一起
they pull the ribs of their tymbal close together very quickly,
来制造咔嗒声响
creating clicking sounds
每一根肋骨都敲击旁边那根
as each rib hits the one next to it.
这就相当于你用吸管
It ’ s a lot like how you can make sounds
来制造声音一样
with a bendy straw.
如果你将它快速地前后移动
If you move it back and forward very quickly,
噪音就产生了
It makes a noise.
蝉可以将鼓室外的肋骨快速地分离
Cicadas can pull apart the ribs on their tymbals
然后快速地将他们敲在一起
and then click them together again so quickly
从而使蝉鸣连绵不断
that each clicking sound runs into the next,
制造出巨大的声响
creating one big, loud sound.
你能听清蝉鸣中的每一个咔嗒声吗 吱吱?
Can you hear each click in the cicada song, Squeaks?
吱吱听着 然后摇了摇头
[Squeaks listens, then shakes his head]
我也不能!
Neither can I!
他们太快了
They ’ re so fast
以至于不可能辨认出每一个咔嗒声
that it becomes almost impossible to tell each click apart.
更不要提那些几乎是令人痛苦的声响
Not to mention almost painfully loud.
一些蝉能发出跟摩托引擎一样大的噪音
Some cicadas can be as loud as a motorcycle engine!
世界上最大声的蝉是骚蝉属
One of the loudest cicadas in the world is the Walker Cicada,
它们生活在北美洲
which lives in North America.
骚蝉属能发出与汽车鸣笛一样大的声音
Walker cicadas can be as loud as a honking car horn,
听的太久后会伤害你的耳朵
and the sound can hurt your ears after a while.
但如果有雌蝉在附近的话 她绝对会听到
But if there’s a female cicada around, she’ll definitely hear it!
然后她可以飞过去找到那只发出声音的蝉
Then she can fly over to find the cicada making that sound.
因此 这个夏天当你在树旁听见巨大的嗡嗡声时
So if you hear that loud buzzing soundin the trees this summer
你就知道它是怎么来的了
now you ’ ll know where it’s coming from.
这意味着有蝉在附近!
It means there’s a cicadanearby!
[吱吱发出了警告的吱吱声]
[Squeaks squeaks a warning]
你也打算制作很大的声音吗? 好的
You’re going to make a loud sound, too? OK.
[吱吱发出了巨大的吱吱声]
[Squeaks makes a loud squeak].
那是一个巨大的吱吱声 吱吱!
That’s one loud squeak, Squeaks!
你能成为一只成功的蝉
You’d make a great cicada.
你有没有在附近听过蝉鸣呢?
Have you ever heard any cicadas in your neighborhood?
你听过最大的声响是什么?
What’s the loudest sound you’ve ever heard?
在下方评论区留言或电邮我们
Let us know by having a grown-up help you to leave a comment below.
来让我们知道
or send us an email at kids@scishow.com.
谢谢观看 我们下次再见 就在这个城堡里
Thanks and we’ll see you next time, here at the Fort!
[片尾]
[ OUTRO ]

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视频概述

自然界中哪种昆虫叫的最响?

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收集自网络

翻译译者

Licia

审核员

审核员 AF

视频来源

https://www.youtube.com/watch?v=-SwCpKlR9J8

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