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蚰蜒是动作迅速的凶猛动物吗? – 译学馆
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蚰蜒是动作迅速的凶猛动物吗?

The House Centipede is Fast, Furious, and Just So Extra | Deep Look

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节目后有详情
Details after the show.
全国公共广播电台PBS 数字工作室
PBS Digital Studios
KQED电视台
KQED
夜晚于车库间 你曾经可有过那种毛骨悚然的感觉?
Ever get that creepy-crawly feeling when you’re in the garage at night?
那种幽灵般在你颈后“轻抚”的感觉?
That phantom tickle on the back of your neck? Well,
是的 这儿的确有东西 在黑暗中等着你
there IS something out there, waitingin the dark.
那就是蚰蜒
The house centipede.
它胃口极大 具有毒性 是速度最快的蜈蚣类
It’s voracious, venomous, and the fastestcentipede there is.
但不必担心
But don’t worry.
它连苍蝇都不会伤害
It wouldn’t hurt a fly.
额……好像不是这样
Oh…not quite true. So,
那么 现在我们来弄清楚一些事实
let’s clear something up right now.
尽管蜈蚣类号称百脚虫 但它们的脚貌似都没有一百只
Despite their name, centipedes almost neverhave a hundred legs.
大多数都少于六十条
Most have fewer than sixty.
这只“小怪兽”还在你车库的时候 只有八条腿
And the tiny monster in your garage starts out with only eight.
直到它慢慢长大 蜕去外骨骼 就长出了更多的腿
Until it grows, sheds its exoskeleton, andsprouts more legs.
然后它又开始蜕皮
Then it sheds again.
再蜕
And again.
又蜕
And again.
还蜕
And again.
蜕蜕蜕 直到最后长够三十条腿
And again, until it finally gets to 30.
所有的腿在波浪起伏般滚动的动作中共同发挥着作用
All those legs work together in a rippling,
这动作被称作节奏波
rolling motion called a metachronal wave.
这和虫子蠕动的方式有点像
It’s kind of the same way a worm gets around. But,
但是 由于背部超长 超有力的腿的推动
the centipede is way, way faster,
蚰蜒的速度
propelled by these extra-long, super-charged legs in
要快得多的多
the back.
想想一艘有船员协调配合的船艇划过水面的样子
Think of it as a well-synchronized crew boat,
强有力的划手在后方
skimming over the water with the strongest
而前面的划手则负责保持船的稳定
rowers in the rear, and the ones in front keeping things steady.
蚰蜒背面长有一层坚硬的铠甲 称为背甲
A set of stiff plates running down the centipede’s back,
它来保护腹面一小段一小段的腹片
called tergites, keep the segments underneath,
使其不至于左右摇摆
called sternites, from rocking side-to-side.
但是蚰蜒还有多出来的腿
But the house centipede still has legs tospare.
它会用一些奇特的方式将这些腿利用起来
And it’s found some novel ways to put themto work.
那些超级长的大长腿在其尾部
Those extra-EXTRA long ones at the very end sort
看着是不是还挺像触角哒?
of look like antennae, don’t they?
那就是了
That’s the idea.
这叫做自动拟态
It’s called automimicry,
指的是动物身体的某一部分看起来和其他部分相像
when one part of the animal looks like another part, usually
以欺骗捕食者或者捕食对象
to fool predators, or prey.
人们一直以来是这么认为的
That’s what people always thought.
而德国科学家仔细观察这些腿后发现
But when scientists in Germany took a closer look
长腿上的感觉毛
at these legs, they found as many sensory
和触角上的感觉毛一样多
hairs on them as on the antennae.
所以 这些“假”触角不仅仅是仿制品
So these “faux” antennae aren’t justdummies.
它实际上是有作用的
They actually work.
看见前边儿的尖牙了吗
And see those fangs up front?
这是它的毒颚
Those are its forciples.
这在早期它们祖先身上也是腿
In some early ancestor, they usedto be legs too.
它们压制住猎物并射入毒液
They clamp down and inject the venom.
但蚰蜒很少咬人
But house centipedes rarely bite people.
这些毒颚也是妆扮仪表的好工具
Those forciples are also a great groomingtool. Oh,
而且……蚰蜒每条腿的末端又是另一种工具
aaanndd… the tip of each centipede leg is another kind of tool,
腿的末端是很小的节组成的
one so super-segmented
因此它就像绳子一样灵活
that it’s almost like a rope.
蚰蜒就把它当做套索 防止猎物逃跑
The centipede uses them as a lasso to keep its prey from escaping.
尽管这只蟋蟀 再使劲蹬 也不能挣脱这种绳套
Not even this cricket, with its powerful kick, can loosen the grip.
所以 这快速闪动的腿堪比可怕的瑞士军刀
So twinkle-toes here is kind of a creepy SwissArmy knife.
你可能会说和军刀相比它可用了好几只腿呢
You might say it’s got a few legs up on the competition. OK,
好叭 这个双关打的不好
OK, bad pun, I know.
蚰蜒确实是个有条不紊的美容师
Centipedes are really methodical groomers.
有点儿像猫
Kind of like cats.
从前腿开始清洁一直到最后
They start with the front legs and work their way to the back.
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Join our Deep Look community on Patreon.
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Click the button or link below to get rewards
获得独家数字下载等奖品
like exclusive digital downloads, chats with
与制作人和达人交流
the producers and cool swag.
噢 另外
Oh and one more thing.
我们合作者PBS数字工作室 想要聆听观众的声音
Our partner PBS Digital studios wants to hearfrom you.
这是一个调查研究 会使我们制作更好的节目
It’s a survey, so we can make even bettershows.
大概需要十分钟 您还有可能赢得一件可爱的短袖
It takes about ten minutes, and you might win a sweet T-shirt.
说明里面有链接
Link is in the description.
感谢
Thanks.

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视频概述

蚰蜒真的有一百只腿吗?这么多腿怎么跑啊……一起来看看吧

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视频来源

https://www.youtube.com/watch?v=q2RtbP1d7Kg

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