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你是我的眼——喵主子的胡须 – 译学馆
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你是我的眼——喵主子的胡须

How do Cats Use Their Whiskers? Slow-Motion - Cats Uncovered - BBC

当我们的大脑充斥着关于模式和颜色的信息时
While our brains get swarmed with information about patterns and color,
在凯丽眼中 快速的动作胜过一切
through Kelly’s eyes fast movement trumps everything.
凯丽跟踪苍蝇
As she stalks the flies,
它的眼睛会向大脑的视觉皮层发出信号
her eyes send signals to the brain’s visual cortex,
大脑以每秒70次的速度分析一张和下一张图片的变化
which analyses what’s changed between one picture and the next up to 70 times every second,
这一速度快于人脑
faster than the human brain.
在凯丽脑中 更大比例的神经元
And far bigger proportion of the neurons in Kelly’s brain,
专门用于探测动作的变化
are dedicated purely to the detection of movement.
凯丽几乎忍不住要一跃而起了
She almost can’t help but pounds.
猫咪的祖先靠低光视力生存
Cats’ wild ancestors, relied on low light vision,
它们还有探测动作并实时追踪的生存技能
and the ability to detect movement to stalk pray.
但这些进化所得也有不好的一面
But these evolutionary adoptations have a down side.
猫咪不能聚焦自身周围30厘米以内的任何东西
Cats can’t focus on anything closed them around 30 centimeters in front of them.
但是既然眼睛帮不上忙 猫作为捕猎者有另一个非常完美的互补感官
But whether eyes fail them, cats have another perfectly adapted sense to go in for the kill.
团队组织了一个试验来揭秘猫的秘密武器是如何运作的
The team has set up an experiemnt to reveal just how a cat secret weapon works.
这个照相机一秒可以达到2700帧的分辨率
“So the camera can do in full of the resolution up to 27 hundred frames one second,”
但我们认为2030帧的分辨率才能捕捉到我们要拍的内容
“But we thought 2030 times will get it.”
那我们把相机的分辨率调到2000吧
“We will set the camera 2000…”
约翰•布拉德肖希望这些超高速的相机
John Bradshaw is hoping these ultra high speed cameras
能够捕捉到运动中的非凡感觉器官
will capture the extraordinary sensory organ in action.
猫的动作真的非常快 动作发生的那一刻我一直盯着摄像机
It really is very very quick, I’ve seen still photographs that happening,
但整个过程我总也看不全
but there’s nothing like I should seen the whole motion.
你看 真的是非常快
So we got that, but it’s very very very quick.
当猫向目标发动攻击时
John is trying to observe the cats’ whiskers
约翰正试图观察猫的胡须
as they move forward into the attack position.
咱们拿个玩具玩着 先等等
Let’s just take a toy, wait for second.
现在咱们就来看一下猫的整个动作过程是怎样的吧
And let’s come to have a look what we have just taken.
一切就绪 开始
Okay, so here we go.
猫意识到老鼠在自己的爪子下 但它想要知道老鼠的确切位置在哪里
Cat realizes the mouse is within his crawls but he wants to know exactly where is the relation to the mouse.
它放弃用眼睛 因为它的眼睛不能近距离聚焦
His eyes give up because he can’t focus very close.
所以这时候胡须就起到至关重要的替代作用
That’s where the whiskers take over.
所以我们可以看到猫的胡须突然往前扫
So we can see here is the whisker suddenly been sweeped forward.
紧跟着猫爪就开始行动
And now the crawls come into action.
那么我们可以看到胡子直指猫鼻子和猫脸的正前方
So we go here look the whiskers’ pointing almost directly in front of the cat’s nose and face,
猫爪子正挥动着 试图抓到老鼠
catching them with his crawls and he sweeped around and trying to catch the mouse.
但是胡须根部的小肌肉会绷紧 促使胡须往前摆动
But the little muscles at the base of each whisker are really tugging hard which are swing those forwards,
其力度完全可以达到咬合的程度
completely up to the gnaw position.
我从来没想到能看到这一幕非凡的过程细节
This really extraordinary detail I’ve never expected to see all of this.
一切好像都发生在1/5秒内
It all seems to take place about a fifth of a second.
我们可以看到猫的反应真的非常快
We just shows how fast cats’ reflects really are,
从肌肉收缩 胡须前探
from the point where they sweeped the whisker forward with muscles contract,
到肌肉放松 胡须再次回弹
and then relax back and the whiskers spring back again.
老鼠根本无处可逃
The mouse doesn’t have a chance.
猫咪的胡须比正常毛发更粗更长
Far thicker and longer than normal hairs,
其皮下长度是皮上长度的三倍
whiskers also sit three times deeper in the skin
胡须根部依附在神经末端上
where they attach to nerve endings,
神经末梢会告诉猫咪每根胡须的弯曲程度
telling the cat how far each one is been bent back,
弯曲速度
and how quickly.
猫咪的胡须长度等于猫咪的身体宽度
Their whiskers are the same width as their body,
这样猫咪就能稳定地通过最狭窄的空间
allowing cats to nevigate the narrowest spaces.
猫咪的眼睛和脚踝上也有胡须
Cats also have whiskers above their eyes and on their ankles,
这些胡须不断地传递给猫咪有关周围世界的信息
sending them a constant stream of information as they sense the world around them.

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视频概述

喵主子的眼睛近距离不能聚焦,这时候胡须就起到至关重要的作用。

听录译者

煜圣

翻译译者

ABC

审核员

审核员CX

视频来源

https://www.youtube.com/watch?v=mdqBbvYX3MU

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