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雪貂:液体动物

Ferrets: Animals in Liquid Form

– Ferrets are really neat.
雪貂真的很灵巧
It’s almost as though you have an animal in liquid form.
你简直就像拥有一只液体形态的动物
They have a really well-adapted body design.
它们的身体结构特别适应环境
By filming the ferret in slow motion,
通过慢动作拍摄
Angela can see exactly what the ferret is doing.
Angela能清楚地看到雪貂正在做什么
When they’re moving around aboveground,
当它们在地面上活动时
they have an arched back posture.
它们的背部呈拱形
And as they enter a tunnel,
当它们钻入洞穴通道时
they seamlessly lower that posture in their back
它们以流畅的动作压低背部
until their spine is stretched out.
直到脊柱伸直
This flexibility in their spine
它们脊柱的柔韧性
is due to a unique set of back vertebrae.
是由于一组独特的脊椎骨
In other animals, protrusions known as processes
在其它动物体内 每个脊柱节段的关节突
on each segment of the spine stop it from moving too far.
会阻止脊柱移动过远
In ferrets, these processes are thinner,
而在雪貂体内 这些关节突更细
creating flexibility and movement.
脊柱便具有了柔韧性 能够充分活动
So their spine can stretch out when they go underground,
因此 当它们钻入地下时 脊柱充分伸展
making their body 30% longer.
可使身体伸长30%
This footage shows how easily the ferrets
这组镜头展现了雪貂是如何
can transition from above to below ground.
轻而易举地从地上转入地下的
But these animals are predators,
但身为捕食者
so what impact does this maneuver have on the ferret’s speed?
这种行动方式会对速度产生什么影响呢?
The black-and-white backdrop helps Angela determine
黑白相间的背景幕可以帮助Angela判定
how fast the ferrets are traveling across a set distance.
雪貂在穿过设定的距离时速度有多快
When the footage is lined up,
当镜头对准时
it reveals something completely unexpected.
呈现出完全出乎意料的状况
The ferret barely loses any speed at all
雪貂在地下跑过去的速度
when running underground.
几乎完全没有下降
Their shorter-than-average limbs
它们的四肢比一般动物的要短
allow them to still be able to move very well,
但仍然能够令它们行动自如
and they aren’t restricted in the limb movement in that position.
并且在地下洞穴里不受肢体运动的限制
In most carnivores,
大多数食肉动物
the legs and body are about the same length.
腿和躯干差不多一样长
But in burrowing mustelids like the ferret,
但是像雪貂这样的穴居鼬类动物
their legs are only half the length of their body.
它们的腿只有躯干的一半长
This means they can run in enclosed spaces
这意味着它们能够在封闭空间里奔跑
without tripping over their own limbs.
而不会被四肢绊倒

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视频概述

都说猫是液体?我雪貂也是液体呢!

听录译者

收集自网络

翻译译者

晚糖

审核员

审核员SR

视频来源

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

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