In this hectic world so much seems 在这个忙忙碌碌的世界里,
to pass us by. 似乎有太多的东西从我们身边溜走了.
All around us dramas are playing out, 我们周围的戏剧正在上演,
but often so fast we don't even see it. 但往往如此之快,我们甚至看不到它.
Blink and you miss it. 眨眼你就会错过.
But slowing down the action,a new world is revealed. 但放慢行动,一个新的世界就出现了.
Little lizards become velociraptors, 小蜥蜴变成了迅猛龙,
Puffballs explode. 马勃菌爆炸了.
Falling leaves cause earthquakes. 落叶会引起地震.
Sit back and enjoy the action. 坐下来享受这个动作.
When animals court, 当动物法庭上,
run, 快跑,
fly,or fight. 飞,或战斗.
There's no need to rush. 不用着急.
Slow motion is the result of capturing 慢动作是捕捉的结果
more frames per second. 每秒更多帧.
More images,more detail. 更多图像,更多细节.
When the footage is played back, 当录像回放时,
the detail of every second is unpacked. 每一秒的细节都被解开了.
It's a popular filming trick, 这是一个很流行的拍摄技巧,
and the only way to reveal some of the faster actions 只有这样才能发现一些更快的动作
in the natural world. 在自然界里.
Like the incredible wing beats of a hummingbird. 就像蜂鸟令人难以置信的翅膀跳动.
These tiniest of birds can flap 这些最小的鸟能拍打翅膀
an incredible 200 times per second. 难以置信的每秒200次.
If this one was to dash off in a straight line, 如果这条直线冲走,
she could top 50 kilometers an hour. 她时速能超过50公里.
Thanks to the unique flexibility of its shoulder joint, 由于肩关节独特的柔韧性,
the wings can move in a figure of eight. 翅膀可以八字形移动.
Perfectly controlling airflow over its surface 完美控制表面气流
and allowing the bird to hover motionless, 让鸟儿静止不动,
fly forwards,backwards, 向前飞,向后飞,
and even upside down. 甚至是颠倒过来.
It needs this incredible control for precision movement. 它需要这种令人难以置信的精确运动控制.
Hummingbirds feed by sinking their beaks 蜂鸟以沉嘴为食
into the long flowers to lap up sap. 化作长长的花朵,舔起树汁.
But no maneuvers are more delicate than this. 但没有比这更微妙的策略了.
The nest is about the size of a half walnut shell. 鸟巢大约有半个核桃壳那么大.
The chick is barely bigger than a bumblebee, 小鸡只比大黄蜂大不了多少,
and the whole thing is bobbing up and down, 整件事上下起伏,
suspended in the leaf. 悬浮在树叶上.
And yet the female's lightning fast reactions 然而雌性的闪电般的反应
enable her to perfectly line up her bill 使她能够完全符合她的帐单
to pass nectar to her hungry chick without doing any damage. 把花蜜传给饥饿的小鸡而不造成任何伤害.
Slowing down the action means we can marvel 放慢动作意味着我们可以惊叹
at the tensile strength of water. 在水的抗拉强度下.
And watch it explode from thermal hot springs 看着它从温泉里爆炸
like it's been detonated. 就像被引爆了一样.
Terrifying globs of lava seem suspended in the air 可怕的熔岩球似乎悬浮在空中
as though in some giant horrifying lava lamp. 好像在某个巨大可怕的熔岩灯里.
The everyday and ordinary become extraordinary. 平凡的日子变得不平凡.
Things we all take for granted. 我们都认为理所当然的事情.
Dark clouds rolling in for warmer storms. 乌云滚滚而来,形成了温暖的风暴.
For humans,it means put your hood up 对人类来说,这意味着把你的帽子戴上
or get out of the rain. 或者离开雨中.
The tiny droplets seem benign to us. 这些小水滴对我们来说似乎是良性的.
Little more than a soggy nuisance. 只不过是个湿漉漉的讨厌鬼.
But on a tiny scale,these droplets can be devastating. 但在很小的范围内,这些液滴可能是毁灭性的.
Slowed down,small animals can be seen to be battered 被打得慢的小动物
by the weather. 因为天气原因.
A raindrop tsunami. 雨滴海啸.
It's at the tiny end of the scale 在天平的最末端
that viewing speed really makes a difference. 这种观看速度真的很重要.
Who'd think about the weight of a falling leaf? 谁会想到落叶的重量？
But for the little creatures living on it, 但对于生活在上面的小生物来说,
whole cities of aphids, 整个城市的蚜虫,
it's the start of a devastating earthquake. 这是一场毁灭性地震的开始.
A trampoline for the tiny. 一个小蹦床.
A jay,a colorful member of the crow family, 一只松鸦,一个乌鸦家族的多姿多彩的成员,
is scouting out an ant's nest. 正在寻找蚂蚁的巢穴.
But it's not looking for lunch. 但它不是在找午餐.
Ants are social insects. 蚂蚁是群居昆虫.
They work together to build their homes, 他们一起建造家园,
find food,and raise their young. 找到食物,抚养他们的孩子.
They also unite in defense of their colony. 他们也团结起来保卫自己的殖民地.
They spot the marauder and rise as one. 他们发现了掠夺者并团结起来.
To protect their home,the ants launch a chemical attack, 为了保护自己的家园,蚂蚁发动化学攻击,
spraying a cocktail of formic acid into the air. 向空气中喷洒甲酸混合物.
While it's toxic,it's exactly what the jay is looking for. 虽然是有毒的,但这正是杰伊想要的.
It's a natural fungicide and insecticide, 它是一种天然杀菌剂和杀虫剂,
helping to rid the birds feathers 帮鸟脱毛
of any unwanted parasites or infections. 任何不想要的寄生虫或感染.
What's a battle for one is a beauty spa for the other. 为一方而战的是另一方的美容spa.
Insects are incredible creatures, 昆虫是不可思议的生物,
often overlooked and taken for granted. 经常被忽视和认为理所当然.
Up close and slowed down,the mini marvels are revealed. 近距离和慢下来,迷你奇迹被揭示.
Few things are more spectacular 没有什么比这更壮观了
than the jump of a grasshopper. 比一只蚱蜢的跳跃更重要.
It's all thanks to a clever bit of physics. 这都要归功于一点聪明的物理知识.
The normally bent knee is holding 正常弯曲的膝盖支撑着
a big flexor muscle tightly,building up a store of energy, 巨大的屈肌紧绷,储存能量,
like a coiled spring. 就像螺旋弹簧.
When the muscle is relaxed,the stored energy is released. 当肌肉放松时,储存的能量被释放.
A cricket catapult. 板球弹射器.
When fighter jets take off, 当战斗机起飞时,
it experiences nine g-force, 它经历了9个重力,
or nine times the force of gravity. 或者是重力的九倍.
At the peak of its explosive launch, 在爆炸性发射的高峰期,
a grasshopper hits a g-force of 20. 蚱蜢的重力是20.
If humans had the equivalent spring loaded leaps, 如果人类有同样的弹簧式跳跃,
we could clear a football field in a single hop. 我们一跳就能把一个足球场清理干净.
And with wings,the grasshoppers' hop 长着翅膀的蚱蜢
can lead to fast flight. 可以导致快速飞行.
Perfect for escaping danger. 非常适合躲避危险.
They don't all fly. 它们不都会飞.
Close cousins,European field crickets,can't fly. 近亲,欧洲蟋蟀,不会飞.
They only weigh about as much as a paperclip, 它们只有回形针那么重,
but still have legs that can propel them 但仍然有腿可以推动它们
for 30 times the length of their bodies. 30倍于他们身体的长度.
During their breeding season, 在繁殖季节,
they sing by rubbing their small wings together. 它们靠摩擦小翅膀唱歌.
Covered in a series of tooth-like bumps, 覆盖着一系列齿状突起,
they grate against each other,making the sound. 他们互相摩擦,发出声音.
Only the males sing and they stand in the entrances 只有雄鸟在唱歌,它们站在入口处
to their borrows to do so. 向他们借钱这样做.
Their home acting like a resonating chamber, 他们的家就像一个共鸣室,
amplifying the sound. 放大声音.
They have different songs. 他们有不同的歌.
Some are to attract females, 有些是为了吸引女性,
but others are war cries aimed at driving off competition. 但另一些则是旨在赶走竞争的战争口号.
Slow motion reveals the most minute clash of the titans. 慢镜头展现了泰坦最细微的碰撞.
The speed of a cricket's leap can save it from many dangers, 蟋蟀跳跃的速度能使它免于许多危险,
unless a rival distracts it. 除非有对手干扰.
Speed is useful for escape,but predators can be fast,too. 速度对逃跑很有用,但捕食者也可以很快.
Like crickets,lizards are cold-blooded. 像蟋蟀一样,蜥蜴也是冷血动物.
If it's a chilly morning, 如果是寒冷的早晨,
they will not be performing at their best, 他们不会表现得最好,
but once they have spent a few hours basking in the sun, 但一旦他们在阳光下晒了几个小时,
they're turbocharged. 它们是涡轮增压的.
Many lizards can run at 40 kilometers per hour, 许多蜥蜴能以每小时40公里的速度奔跑,
not bad for such tiny legs. 对这么小的腿来说还不错.
But faster than a speeding bullet, 但比子弹还快,
there's one superhero of the reptile world 爬行动物世界里有一个超级英雄
that can only be appreciated in slow-mo. 只有慢镜头才能欣赏到.
The fastest tongue in the west. 西方最快的舌头.
The quickdraw chameleon. 快速绘制变色龙.
The chameleon can lock onto its target 变色龙能锁定目标
thanks to eyes mounted on turrets of flesh 多亏了安装在肉炮塔上的眼睛
that can be rotated independently of each other. 可以独立旋转的.
It can perfectly triangulate the prey's location. 它可以完美地三角定位猎物的位置.
The tongue can stretch two and a half times 舌头可以伸展两倍半
the lizard's body length,so it can shoot at 10 paces, 蜥蜴的身长,所以它能以10步的速度射击,
far enough back to avoid spooking prey. 远得足以避免惊吓猎物.
Like a sock scrunched up over a foot, 就像一只袜子蜷缩在脚上,
its tongue rests over a smooth bone 它的舌头搁在光滑的骨头上
in the floor of the mouth until it's needed. 在口腔底部直到需要.
It's full of collagen-based muscle segments 它充满了胶原蛋白为基础的肌肉片段
that are elastic and can store energy. 有弹性,能储存能量.
Ever squeezed a slippery watermelon seed 你挤过滑溜溜的西瓜籽吗
between your fingers? 在你的手指之间？
When the tongue's muscles contract,they do the same. 当舌头的肌肉收缩时,它们也会收缩.
Shooting the tongue from its bony support. 把舌头从骨胳上射下来.
It can reach 100 kilometers per hour in 100th of a second, 它能在100分之一秒内达到每小时100公里,
faster than a jet plane. 比喷气式飞机还快.
The tip of the tongue has saliva on it 舌尖上有唾液
that is 400 times thicker than a human's. 比人类的厚400倍.
It's like sticky honey, 就像黏糊糊的蜂蜜,
holding onto the bug while muscles reel the tongue back in. 抓住虫子,同时肌肉将舌头卷起.
Speed and attack is vital to predators. 速度和攻击力对捕食者至关重要.
A split second delay in the strike 罢工的一瞬间延迟
can result in going hungry. 会导致饥饿.
Slow motion reveals the perfect timing of most reptiles, 慢动作显示了大多数爬行动物的最佳时机,
like the thorny devil. 就像一个多刺的魔鬼.
Many reptiles appear sluggish and lethargic, 许多爬行动物看起来行动迟缓,昏昏欲睡,
not moving much. 不怎么动.
But when they need to,they are capable of terrifying speed. 但当他们需要的时候,他们有惊人的速度.
Nile crocodiles can remain motionless for hours on end. 尼罗河鳄可以连续几个小时不动.
It's the perfect way to save energy. 这是节约能源的最佳方法.
Blending in with the murky water, 混入浑浊的水中,
crocs can lie in wait until prey comes to them. 鳄鱼可以躺在那里等待猎物的到来.
Crocodiles have the most powerful bone-crushing 鳄鱼的碎骨能力最强
bite force on the planet. 地球上的咬合力.
Timing is everything. 时间就是一切.
They can't allow movement to give the game away too soon. 他们不能让运动过早地放弃比赛.
Crocodiles can lunge at more than 40 kilometers per hour. 鳄鱼能以每小时40公里以上的速度猛冲.
A powerful body and muscular tail propel the attack. 有力的身体和肌肉发达的尾巴推动攻击.
Slow motion lets us marvel at an impact 慢动作让我们惊叹于冲击力
that we'd miss in the blink of an eye. 一眨眼我们就错过了.
Slowing down the footage also reveals some dramatic escapes. 放慢镜头的速度也会暴露出一些戏剧性的越狱行为.
Crocodiles aren't able to generate heat in their bodies, 鳄鱼不能在体内产生热量,
but birds and mammals are, 但鸟类和哺乳动物是,
meaning their high energy activities 意味着他们的高能量活动
can be hard to keep up with. 很难跟上.
Thanks to their fast metabolism,birds are speedy movers. 由于它们的新陈代谢很快,鸟类行动迅速.
It's during their courtship that slow motion 在他们求爱的过程中
reveals the best of birds. 揭示了最好的鸟.
The Slavonian grebe is another specialist. 斯拉夫人格雷布是另一个专家.
It's barely able to walk. 它几乎不能走路.
Over the eons its legs have evolved, 千百万年来,它的腿不断进化,
migrating further back on its body, 再移回身体,
devoted entirely to making it a powerful swimmer 完全致力于使它成为一个强大的游泳运动员
that can dive for food. 它可以潜水觅食.
The grebes of monogamous 一夫一妻制的灰姑娘
and take the dating game very seriously. 认真对待约会游戏.
They don't appreciate intruders 入侵者不会感激的
trying to muscle in on their partners. 试图说服他们的搭档.
But once they get some alone time,they dance. 但一旦他们有了独处的时间,他们就会跳舞.
To cement a strong bond to get them through arduous 巩固一个牢固的纽带,让他们度过难关
child-rearing,the pair test their commitment 抚养孩子,两人考验自己的承诺
through synchronized ballet. 通过同步芭蕾舞.
They fetch pond weed,a colorful prop, 他们拿来池塘里的野草,一个五颜六色的道具,
and mimic each other's head turns. 模仿对方的头转向.
When they paddle the legs at the back of their bodies 当他们在身体后面划水的时候
they almost appear to walk on water. 它们几乎像是在水上行走.
They perform the penguin dance. 他们表演企鹅舞.
Not all birds pair up so harmoniously. 并非所有的鸟都能如此和谐地配对.
While some form close partnerships, 有些人结成了亲密的伙伴关系,
others seek harems. 其他人寻找后宫.
A male black grouse will play no part in chick rearing. 雄性黑松鸡在育雏中不起任何作用.
It just wants to mate with as many females as possible 它只想和尽可能多的雌性交配
and will leave them to bring up his kids. 让他们来抚养他的孩子.
But the girls are choosy. 但是女孩们很挑剔.
For a male to win the right to mate with her, 为了让一只雄性赢得与她交配的权利,
he'll have to prove his worth. 他必须证明自己的价值.
The male selects an arena,known as a lek, 雄性选择一个竞技场,称为狮子座,
where he can strut his stuff. 在那里他可以炫耀他的东西.
Other males will show up,too. 其他雄性也会出现.
They are trying to prove to the girls that they have 他们想向姑娘们证明
the best voices,best plumage, 最好的声音,最好的羽毛,
and best stamina to keep it up. 以及最好的耐力来保持它.
Some individuals are evenly matched 有些人是势均力敌的
and take the competition to the next level. 把比赛推向新的高度.
Feathers fly in a grouse joust. 羽毛在松鸡搏斗中飞舞.
Once a winner's announced, 一旦宣布获胜者,
the male will claim his prize, 雄性会领奖,
and the females will prepare for their duties 雌性会为它们的任务做好准备
as single moms. 作为单身妈妈.
Many birds work together to help raise their young. 许多鸟一起工作来帮助抚养幼鸟.
Endlessly ferrying food back to the nest. 无休止地把食物运回巢穴.
Activity that can draw unwanted attention. 引起不必要注意的活动.
The superb fairy wrens dash in and out 一流的仙女鹪鹩进进出出
as quickly as they can, 以最快的速度,
but kookaburras are eagle-eyed. 但是笑翠鸟是鹰眼的.
They're the biggest members of the kingfisher family, 他们是翠鸟家族最大的成员,
sharing the lightening fast dives 分享闪电般的快速跳水
and spear-like beaks of their cousins. 还有他们堂兄弟的矛状喙.
Thankfully,a beetle caught its eye. 谢天谢地,一只甲虫引起了它的注意.
Top predators in the outback, 内陆的顶级捕食者,
kookaburras can eat just about any small creature. 笑翠鸟几乎可以吃任何小动物.
Like all kingfishers,it has many unique features. 像所有翠鸟一样,它有许多独特的特征.
Slow motion reveals bizarre toes. 慢动作显示出奇怪的脚趾.
They are syndactyl,with the second 他们是并指,第二个
and third toes fused together. 第三个脚趾融合在一起.
Only kingfishers and hornbills have toes like this 只有翠鸟和犀鸟有这样的脚趾
and no one is sure why. 没人知道为什么.
The kookaburra has a large brain 笑翠鸟的大脑很大
with a lot of emphasis on its depth perception. 非常强调它的深度感知.
When it's ready to fly, 当它准备好飞行时,
it will drop rather than launch itself from the branch. 它会从树枝上掉下来而不是从树枝上掉下来.
It not only has great binocular vision, 它不仅有很好的双目视觉,
but can even compensate for 甚至可以补偿
the refractive properties of water. 水的折射特性.
Still perfectly judging the distance to submerge prey. 仍然完美地判断着淹没猎物的距离.
Its pointed bill parts the surface to grab its prey, 它尖尖的喙分开水面去抓猎物,
a yabby,or Australian crayfish. 澳洲小龙虾.
The whole thing happens so quickly 整件事发生得太快了
that it can get airborne again before it gets waterlogged. 它能在淹水之前再次升空.
Yabbies fight back, 雅比反击,
but kookaburras have powerful necks, 但是笑翠鸟的脖子很结实,
enabling them to use ingenuity and brute force 使他们能够运用智慧和暴力
to disarm their prey. 解除猎物的武装.
With the kookaburra well fed, 笑翠鸟吃饱了,
the wren chicks are safe for now. 鹪鹩小鸡现在很安全.
Eventually,all birds must leave the nest. 最后,所有的鸟都必须离开鸟巢.
Some wait until they can fly, 有的等到能飞,
but others don't have that luxury. 但其他人没有这种奢侈.
Even if their nest is six meters up. 即使它们的巢高6米.
Ducks like to get their young to water as soon as possible. 鸭子喜欢让它们的幼崽尽快下水.
But goldeneyes nest in tree cavities. 在树洞里,是的.
Long before they grow wings, 在它们长翅膀之前,
the ducklings must get airborne and hope for the best. 小鸭们必须飞起来,抱着最好的希望.
Fortunately,their young,soft bones and dense fluff 幸运的是,他们年轻,柔软的骨头和密集的绒毛
make them quite bouncy. 让它们很有弹性.
And they can follow mom. 他们可以跟着妈妈.
Being on the water puts the young birds at risk. 在水上使幼鸟处于危险之中.
But most predators here are after fish. 但这里的大多数食肉动物都在追逐鱼.
The osprey is a supreme fisher. 鱼鹰是一种至高无上的鱼.
Its wings sweep back to maximize speed in its plunge. 它的翅膀向后掠过,以最大限度地提高速度在它的跳水.
As it prepares to hit the water,its nostrils close. 当它准备下水时,它的鼻孔会关闭.
Its talons swing forward to strike, 它的爪子向前摆动来攻击,
toes spread so that two face forwards 脚趾张开,使两个脸朝前
and two back to grasp fish. 两个回去抓鱼.
Spiny scales on its feet improve its grip. 它多刺的脚上的鳞片能增强它的抓地力.
The osprey is the only raptor to oil its feathers, 鱼鹰是唯一给羽毛上油的猛禽,
making it waterproof. 使它防水.
It just has to shake off the excess water 它只需要把多余的水抖掉
as it gets airborne. 当它升空的时候.
And to improve its aerodynamics, 为了改善空气动力学,
it points the fish head first 它首先指向鱼头
while it flies back to its perch. 当它飞回栖息的地方.
Sea eagles use a similar technique. 海鹰也使用类似的技术.
They tend to only grab prey close to the surface. 它们往往只在靠近水面的地方捕食猎物.
Sweeping it up with powerful talons. 用有力的爪子把它扫过来.
With wings that could hug a sofa, 翅膀可以拥抱沙发,
the eagle easily gets back into the air. 鹰很容易飞回空中.
But although eagles seem pretty good at providing 尽管老鹰似乎很擅长提供
for themselves,they're not willing to share. 对于他们自己,他们不愿意分享.
In winter,eagles of different species 冬天,不同种类的老鹰
gather near open water where they have a good chance 在有机会的开阔水域附近聚集
of finding food. 寻找食物.
Competition is tough. 竞争很激烈.
One golden eagle isn't doing the catching himself, 一只金鹰没有抓到自己,
he's watching others. 他在看别人.
He's planning grand theft. 他在策划大盗.
Slowing things down reveals that powerful wings 放慢速度会显示出强大的翅膀
can deliver a thump. 能发出重击声.
Their beaks look menacing,but eagles save them for feeding. 它们的喙看起来很危险,但老鹰把它们留作食物.
Their main weapons are their powerful talons. 他们的主要武器是他们有力的爪子.
Even when food is plentiful,eagles can be feisty. 即使食物充足,老鹰也会很活跃.
There's enough food on this winter killed deer carcass 这个冬天杀死的鹿尸体上有足够的食物
to feed a flock of birds, 喂一群鸟,
but the sea eagles don't want competition. 但是海鹰不想竞争.
Especially from the crows. 尤其是乌鸦.
Eventually the cocky birds push their luck. 最后,骄傲的鸟儿们会碰运气.
One is added to the menu. 一个被添加到菜单中.
Birds are not the only creatures who have mastered the air. 鸟类不是唯一掌握空气的生物.
While birds have fused and reduced finger bones 而鸟类的指骨已经融合并减少
to support their feathers, 为了支撑它们的羽毛,
bats have long bony fingers linked 蝙蝠有长而骨瘦如柴的手指
by a thin membrane of skin. 一层薄薄的皮肤.
95% of a bat's body surface is its wings. 蝙蝠95%的体表是翅膀.
Nearly 2000 species range from bumblebee to eagle-sized. 从大黄蜂到老鹰大小的近2000种.
Masters of the night sky, 夜空的主人,
they might top speeds of 160 kilometers per hour 它们的最高时速可能达到每小时160公里
and cover 400 kilometers a night. 每晚400公里.
Some are agile enough to catch insects on the wing, 有些敏捷得足以捕捉翅膀上的昆虫,
others,the giants,fly from plant to plant 另一些,巨人,从一个工厂飞到另一个工厂
to eat flowers and fruit. 吃鲜花和水果.
The smaller insect eaters use echolocation like dolphins. 较小的食虫动物像海豚一样使用回声定位.
They call out and listen to returning echoes. 他们大声呼喊,倾听回响.
It means they can safely fly at night 这意味着它们可以在夜间安全飞行
and don't rely on their eyes. 不要依赖他们的眼睛.
They can navigate around a cave in the dark. 他们可以在黑暗中绕过洞穴.
Bats are the only mammals that can truly fly, 蝙蝠是唯一能真正飞行的哺乳动物,
though there are others that try. 尽管还有其他人在尝试.
Sugar gliders look a lot like flying squirrels 糖滑翔机看起来很像飞松鼠
and they travel in the same way, 它们以同样的方式旅行,
but they're Australian marsupials. 但它们是澳大利亚有袋动物.
Elastic and stretchable flaps of skin on their sides, 两侧有弹性和可伸缩的皮瓣,
running all the way to their ankles and wrists, 一直跑到脚踝和手腕,
turn them into squirrel-shaped kites. 把它们变成松鼠形状的风筝.
They can glide 50 meters at a time from tree to tree. 它们一次能从一棵树滑翔50米.
They can't flap,and so always head downhill. 它们不能拍打,所以总是朝下坡方向前进.
Mammals have a multitude of ways of moving 哺乳动物有多种运动方式
and some have to be seen in slow motion to be believed. 有些人必须慢镜头才能相信.
The red kangaroo. 红袋鼠.
At 70 kilometers per hour,it's hard to make out details, 时速70公里,很难搞清楚细节,
though,it's clear these two meter giants hop. 不过,很明显,这两米巨人在跳.
But slow it down and you reveal spectacular engineering. 但放慢速度,你会发现惊人的工程.
The kangaroos have long feet. 袋鼠的脚很长.
They're kickboards. 它们是踢脚板.
Huge,stretchy tendons run from their ankles 巨大的,有弹性的肌腱从脚踝伸出来
along the back of the legs. 沿着后腿.
These are the key to the kangaroo cruising. 这些是袋鼠巡航的关键.
For most mammals,going fast means working muscles hard, 对大多数哺乳动物来说,跑得快意味着要努力锻炼肌肉,
taking more frequent strides. 更频繁的步伐.
But when kangaroos wants to go flat out, 但是当袋鼠想全力以赴的时候,
they don't take more strides,they lengthen each one. 他们不走更多的步伐,他们延长每一个.
One bound can cover nine meters. 一次可以跑九米.
And it's because they're using their tendons like springs. 因为他们用的是弹簧.
If you compress a spring and then release it, 如果你压缩弹簧然后松开,
it will ping back up. 它将ping备份.
That's because as it's compressed it stores energy. 因为它储存的是压缩的能量.
Kangaroos' tendons do the same. 袋鼠的肌腱也是这样.
The more they are stretched and compressed, 它们被拉伸和压缩得越多,
the more energy they have to unleash for the next stride. 他们需要为下一步释放更多的能量.
The counterweight tail helps stabilize and steer, 配重尾部有助于稳定和转向,
but it also bounces up and down,generating momentum. 但它也会上下反弹,产生动力.
It pumps the animal's body cavity, 它泵入动物的体腔,
inflating and deflating its lungs. 使肺充气和放气.
It doesn't even need to breathe. 它甚至不需要呼吸.
And unlike other mammals,its oxygen and energy consumption 与其他哺乳动物不同的是,它的氧气和能量消耗
barely go up at top speeds, 几乎不以最快的速度上升,
making it perhaps the most energy 使之成为最具活力的
efficient way of traveling. 高效的旅行方式.
It also makes kangaroos and their cousins 它也能制造袋鼠和它们的表亲
pretty good fighters. 很好的战士.
Boulders don't stop rock wallabies 巨石阻挡不了岩石袋鼠
from a good kickboxing fight. 从一场精彩的跆拳道比赛中.
Parkour at its best. 最好的跑酷.
Being able to run fast is good for escaping danger, 跑得快有助于避免危险,
but also,if you are the danger. 但是,如果你是危险的.
Predators unleash their explosive power in different ways. 捕食者以不同的方式释放他们的爆发力.
Some adopts the stalk and pounce. 有些人则采取了跟踪和突袭.
The serval is one of the smaller members of the cat family, serval是猫科中较小的成员之一,
but as a predator,it's also one of the most effective. 但作为捕食者,它也是最有效的.
Having proportionately the longest legs for any cat 成比例地有猫最长的腿
helps the serval to see over long grass. 有助于观察长草.
It stalks silently on padded feet, 它用软垫的脚默默地爬行,
trying to get closer to its favorite feathered prey. 试图接近它最喜欢的有羽毛的猎物.
Fast and flighty prey is a challenge. 快速和轻快的猎物是一个挑战.
22 muscles can independently rotate its massive ears 22块肌肉可以独立旋转它巨大的耳朵
to help it lock on to its target. 帮助它锁定目标.
Once in position,those long legs propel it 一旦就位,这些长腿推动它前进
three meters into the air. 三米高空.
The bird didn't see it coming. 那只鸟没有看到它来.
Half of all attacks result in success, 一半的攻击成功,
making the serval one of the most efficient killer cats. 使这几只猫成为最有效率的杀人猫之一.
Though it's the predators that run down their prey 虽然是食肉动物把猎物吃掉了
that really offer the visual feast. 这真的提供了视觉盛宴.
It might not be as energy efficient as the serval, 它的能源效率可能不如普通的汽车,
but the cheetah has a similar success rate. 但猎豹也有类似的成功率.
Its technique couldn't be more different. 它的技术完全不同.
It's over in seconds. 几秒钟就结束了.
Slow it down and understand the action. 放慢速度,理解动作.
The cheetah can do naught to 103 seconds. 猎豹在103秒内什么也做不了.
Few cars could keep up. 几乎没有汽车能跟上.
In fact,its speed can top out at 120 kilometers per hour, 事实上,它的速度最高可达每小时120公里,
but it can only sustain this for a few hundred meters. 但它只能维持几百米.
Any further and it overheats. 再往前走就会过热.
So before it risks a run,it must stalk closely to its prey. 所以在它冒险逃跑之前,它必须紧跟猎物.
It needs to avoid having to run for more than a minute. 它需要避免运行超过一分钟.
Then it hits the turbo button. 然后按下涡轮按钮.
The hips and shoulders can swing as a flexible spine arches 臀部和肩膀可以像灵活的脊柱弓一样摆动
up and down,lengthening its leap. 上下,延长它的跳跃.
With legs bunched tight, 双腿紧绷,
and then flexed as wide as they'll go, 然后尽可能地弯曲,
the cats can take eight meter strides. 这些猫能走八米远.
Cheetahs' claws don't retract like other cats, 猎豹的爪子不像其他猫那样缩回,
and their presence helps to grip the ground at high speed. 它们的存在有助于高速抓地力.
The long tail's a rudder, 长尾是舵,
maintaining balance on quick turns. 快速转弯时保持平衡.
The cheetahs' ribcage is deep with supersized heart, 猎豹的胸腔很深,心脏很大,
liver,and lungs ensuring a good supply of oxygenated blood. 肝脏和肺保证了充氧血液的良好供应.
When they get within range,the hooked claw, 当它们进入射程时,钩爪,
like a lethal thumb,is swung out to trip its victim. 就像一个致命的拇指,被甩出来绊倒受害者.
And it's killed with a bite to the throat. 它被咬死喉咙.
After a hard workout like this, 经过这样的艰苦训练,
a cheetah must seek shade to cool off. 猎豹必须找阴凉处凉快.
Its hunting technique burns a lot of calories. 它的狩猎技术消耗了大量的卡路里.
But unlike the serval,it secured a large meal, 但与serval不同的是,它保证了一顿丰盛的晚餐,
and won't need to hunt again for days. 好几天都不用再打猎了.
We seem to rush through life. 我们似乎匆匆忙忙地度过了一生.
It might take technology to slow down 可能需要技术来减缓速度
the detail in some actions, 一些动作的细节,
but it would do us all good to slow down sometimes 但有时放慢脚步对我们都有好处
and appreciate the world around us. 欣赏我们周围的世界.
You might be surprised by what you see. 你可能会对你所看到的感到惊讶.
Yes! 对！