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响尾蛇的尾巴为什么会响? – 译学馆
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响尾蛇的尾巴为什么会响?

Look Inside a Rattlesnake's Rattle | Deep Look

Hi, it’s Lauren.
大家好 我是Lauren
Do you want to help Deep Look”scale up?”
你想帮助《微观深望》更好发展吗?
Join our Patreon community… link is in the description.
加入我们Patreon网站的社群吧!链接在视频详情里
微观深望
Everyone knows this sound…
每个人都知道这个声音
it means danger.
它意味着危险
Rattlesnakes inspire fear.
响尾蛇会激发人的恐惧
I mean, just look at that face…
我的意思是说 只看它的脸也会让人害怕
But for the most part, they really don’t deserve it.
但在大多数情况下 它们真的徒有其表
Ok, yeah, a single venomous bite would send you to the hospital.
好吧 是的 只要被咬一口 你就会被送去医院
But rattlesnakes really don’t want to bite you.
但响尾蛇其实真的不想咬你
Which is where the rattle comes in…
所以我们来说说它们尾部的角质环吧……
It’s a polite way to say back the heck off.
这是一种说“滚开”的礼貌方式
So how do they make that sound –
所以 它们是怎么发出这种声音的呢
that loud buzz you just can’t ignore?
那种让你无法忽视的很大的沙沙声?
It’s not just the snake version of a maraca,
这不仅仅是蛇版的沙球
with little bits shaking around inside.
里面有小东西晃动的一种乐器
The rattle is actually a bunch of loosely interlocking segments.
响尾蛇的角质环实际上是一串松散的联锁节段
Check out the inside.
看看里面
The segments are made of the same hard protein
这些节段由名为角蛋白的硬质蛋白组成
that your fingernails are made of, called keratin.
和你指甲的构成成分一样的角蛋白
You can see how they hook together.
你可以看到它们是如何连接在一起的
Undulating waves travel down the length of the rattle.
波浪形的波纹沿着角质环的长度不断向前延伸
The snake shakes its tail so quickly it just looks like a blur –
响尾蛇摇尾巴的速度太快了 只能看到一片虚影
unless you slow it down.
除非你用慢放功能来看
The segments are all loose and jiggly, so they click against each other.
这些片段都是松散的 不固定的 所以它们相互碰撞
Rattlesnakes get a new segment every time they shed their skin.
响尾蛇每蜕皮一次 都会生成一个新的节段
Each new segment grows inside the last one.
每个新节段都从最后的尾部节段中长出
So when it sheds, they stay hooked together.
所以即使蛇蜕皮以后 它们依然连在一起
So the older the snake, the longer the rattle –
通常蛇年龄越大 角质环越长
unless it gets broken, which usually happens
除非角质环断了 当然这在野外时常发生
Rattlesnakes can move their tails back and forth 50 to 100 times every second.
响尾蛇的尾巴每秒可以前后移动50到100次
It’s one of the fastest sustained muscular contractions in nature,
这是自然界中肌肉持续收缩的最快速度之一
right up there with a hummingbird’s beating wings.
就如同蜂鸟扇动翅膀的速度
And rattlesnakes can keep up that buzz going non-stop for up to two hours.
响尾蛇可以持续不停地发出沙沙声长达两个小时
But despite that ability, they don’t want to rattle at all,
但尽管有这种能力 响尾蛇也不想让尾巴响个不停
if they can help it.
如果它们能控制的话
Rattlesnakes are ambush predators, so they want to keep a low profile.
响尾蛇是伏击性捕食者 所以它们想保持低调
To get within striking distance,
为了进入攻击范围
they need to stay hidden and silent
它们需要隐蔽 保持沉默
Rattling blows their cover,
响尾完全暴露了它的行踪
letting anyone in the area know exactly where they are.
让附近的猎物知道了它们的确切位置
So they only use it to scare off their enemies.
所以它们只是用响声来吓退敌人
And when they slither around,
当它们四处游走时
they keep the rattle in silent mode, holding it up in the air to stay quiet.
它们把角质环举在空中保持安静 进入静音模式
Yep, this viper that gets all the attention really doesn’t want any attention at all.
是的 这条引起了所有关注的毒蛇其实压根不想引人注意
If you think Deep Look is wild, check out America From Scratch.
如果你认为《微观深望》够疯狂 看看America From Scratch频道的视频吧!
It’s a show from PBS Digital Studios
这是PBS数码工作室出品的另一档节目
that asks” what might the United States be like if it was founded today?
内容是关于 “如果美国今天才被建立 它会是什么样子?”
” Like, what if there were no states?
或是“如果美国没有划分这些州会怎样呢?”
Link in the description.
链接在视频详情里

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响尾蛇真的如看到的那么危险吗?它的尾巴为什么会响呢?看完视频,你会得到答案!

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视频来源

https://www.youtube.com/watch?v=ZO4IAZycUik

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