超自然（2022）

When the rattlesnake alarm is raised...
小猫头鹰知道要保持距离
...the owlets know to keep their distance.
它的毒液效果强大，甚至可以毒死体型最大的动物
Its venom is potent enough to kill even the largest animals,
横行北美
to roam America.
但保持好奇心可以救命
But being inquisitive can be a lifesaver.
只要它们警惕观察 保持距离
As long as they keep a watchful eye and keep their distance...
就是安全的
they should be safe.
有些危险更不容易避免
Some dangers are harder to avoid.
北美野牛
Bison.
它们会来猫头鹰洞穴，附近的开阔地洗泥浴
They target the openings around owl burrows to dust bathe.
这种体重达950公斤的庞然大物
This twoandahalfthousand pound giant...
很容易就会压坏巢穴，害死巢穴里面的猫头鹰
could easily crush the den, and then trap those inside.
所以小猫头鹰们，会有一种非常了不起的举动
So, the owlets do something truly amazing.
它们掌握了模仿的艺术
They've mastered the art of imitation...
模仿响尾蛇报♥警♥的声音 几可乱真
copying that telltale snakerattle to near perfection.
它们吓走了，比它们大一万一千倍的动物
They scare off a beast 11,000 times their size.
学会这些小的模仿技能，可以让它们成长为
These marvelous little mimics are well on their way to becoming
穴居猫头鹰安保队伍中的成熟一员
fullyfledged members of the burrowing owl security force.
看上面 看周围 看近处
Look up, look around, look closer...
就会看到
and you'll see
在这个奇妙的世界里，到处都是隐藏的奇怪关系
strange relationships hidden everywhere in this wonderful world.
每年有几个特别的夜晚
On a few special nights each year
墨西哥山中这一小片森林
this small patch of forest in the mountains of Mexico...
会上演地球上最具魅力的协作之一
stages one of the most mesmerizing displays of cooperation on Earth.
这只雄性萤火虫在地下等待了两年
This male firefly has been waiting
for two years underground.
现在它的闪耀时刻来到了
Now is his chance to shine.
它具备这份工作应有的化学物质
And he has just the right chemistry for the job.
它将氧气送入腹部
He drives oxygen into his abdomen.
氧气与强效化学物质起反应
It reacts with potent chemical compounds...
合成荧光素和荧光素酶，就出现了生物发光的现象
luciferin and luciferase...
in an explosion of bioluminescence.
但即便有这种魔法般的技能，单打独斗还是不够的
But even this enchanting ability is not enough on its own.
雌性萤火虫会为此目眩神迷
Females like to be dazzled.
亮度越强越好
The brighter, the better.
所以 雄性唯一的选择
So, his only choice...
就是和竞争对手组团合作
is to team up with his rivals.
当几千只雄性萤火虫汇集到一起时
When thousands of male fireflies come together...
当然就会更亮
it's certainly brighter...
但也会更混乱
but far more chaotic.
雌性只有在雄性同步发光闪烁时，才会有所行动
Females will only make their move when the males flash in sync.
于是 雄性慢慢地调整发光时间
So, slowly, they adjust their timing...
直到最后 奇妙的事情发生了
until finally, something magical happens.
它们达到了一种超自然的同步
They reach supernatural synchronicity...
这种墨西哥萤火之浪 之前极少被拍摄到
a glowing Mexican wave, rarely filmed before.
在2000种萤火虫之中
Of 2000 firefly species...
只有大概12种会出现这种同步现象
only around 12 display in unison...
这种涟漪效应非常显著
and this ripple effect is so phenomenal...
就连最挑剔的雌性，都会无法自控地被点亮
even the pickiest female can't help being turned on.
它表示出了兴趣
She shows her interests...
但它的光太微弱了
but her light is so faint...
它必须让自己的光，出现在雄性发光的间隙中
she must make her signal in the gap between the male's flashes.
每只雌性有十只雄性竞争
There are ten rivals vying for each female.
现在是雄性为自己争取的时候了
So now, it's every male for himself.
这位坚定的雄性最先来到它这里
It's this determined fellow who reaches her first...
最终完成了交♥配♥
and finally gets to mate.
但究其原因
But ultimately,
它的幸福爱情都是来自于 这种引人入胜的
his luck in love is all thanks to this spellbinding display
合作方式
of cooperation.
我们越深入探寻自然界中的奇异关系
The deeper we delve into nature's strange relations...
就越会觉得惊异不已
...the more surprising they become.
在非洲热带草原
On the African savanna...
看起来不可能的同盟者 合作起来解决大问题
unlikely allies collaborate to overcome a big problem.
为了满足自己巨大的胃口
To satisfy its enormous appetite...
一头大象每天 要摄入136公斤的草木类食物
an elephant eats 300 pounds of vegetation in a day.
树木无法幸免
Trees can't escape.
但金合欢有一种独特的 威慑大象的能力
But the whistling acacia has an extraordinary elephant deterrent.
一个低频声波屏障
A lowfrequency sonic shield...
听上去像是一群愤怒的 准备进攻的蜜蜂
...that sounds like a swarm of angry, stinging bees.
这种声音甚至连大象都会害怕
It's a noise that even elephants fear.
金合欢并不是天生具备安保系统的
The acacia doesn't come with a builtin alarm system...
这种系统是小帮手为它们安装的
it's installed by little helpers.
鸡尾酒蚁在膨大的刺上咬出洞来
Cocktail ants gnaw holes in the swollen thorns.
据信它们是利用触须 来寻找最完美的角度
It's believed they use their antennae to judge the perfect angle.
当盛行风刮起来的时候
So, when the prevailing wind blows...
金合欢就开始唱歌♥了
the acacia starts to sing.
蚁洞不仅可以让树木歌♥唱
The ant holes not only make the tree whistle...
也是通往隐秘世界的大门
they are also portals to a hidden world.
秘密的安全屋
Secret safe houses...
蚂蚁在这里养育幼虫
where the ants raise their young.
这种树会分泌 成瘾性很强的含糖树汁来确保
The tree also supplies highlyaddictive, sugary nectar to make sure the ants
蚂蚁不会离开
stick around.
一颗金合欢树可以承载一个 数量超过五万只的蚂蚁群
And just one acacia can house a colony 50,000 strong.
这是一个空中之城
It's a city in the sky...
但它却面临着袭击
...but it's under attack.
1.8米长的脖子，可以够到最高处的树叶
A sixfoot neck can reach the highest leaves.
53厘米长的灵活舌头，可以在尖刺中间挑拣树叶
A dexterous 21inch tongue can pick between the thorns.
与大象不同
And unlike elephants...
长颈鹿对金合欢的口哨声是免疫的
giraffes are immune to an acacia's whistle.
这时候就需要蚂蚁来保卫自己的家园
Time for the ants to earn their keep...
组织一支军队来进攻敌人
...and to mobilize an army to take on an enemy,
敌人的体型是它们的15万8千倍
158 million times their size.
鸡尾酒蚁看不到太远的地方，所以它们利用超敏感的
Cocktail ants can't see far, so they detect attackers
振动传感器来侦查袭击者
using hypersensitive vibration sensors.
长颈鹿进食时
As the giraffe feeds...
树枝上会传来震颤
it sends shockwaves through the branches.
蚂蚁可以用腿部感知，这些震颤的细微差别
The ants can measure minute differences in these tremors with their legs.
如果振动出现在右前方，然后瞬间回到左边
If the front right detects motion, a fraction of a second before back left,
这意味着敌人就在右前方
it means enemy ahead, to the right.
军队开始发动袭击
The army attacks...
在长颈鹿面部和舌头上痛咬一番
inflicting painful bites to the tongue and face.
这是牺牲个体保存群体
It's one for all...
也是为了自♥由♥而发动的全体攻击
and all for the tree.
它们抬高腹部 射出有毒的蚁酸
Raising their abdomens, they blast out noxious acid.
它们就是因此而得名的
It's how they earned their name.
鸡尾酒蚁
Cocktail ants.
效果很好
And it works.
损失是不可避免的
Losses are inevitable...
但最终 长颈鹿被迫离开了
but eventually, the giraffe is forced to move on.
尽管有战斗伤亡
Despite damage and casualties...
但金合欢和空中城市保住了
both acacia and colony live on.
这都要归功于它们之间惊人的合作
Thanks to their remarkable partnership.
能把不同种类生物聚集在一起的，不仅仅是战斗
It's not only conflict that brings species together.
疣猪喜欢洗泥巴浴
Warthogs love a good mud bath.
这样很舒服
It feels great...
也可以让皮肤上的角质层剥落
and exfoliates the skin...
但有些东西是泥水洗不掉的
but there are some things mud just can't remove.
疣猪的身体是各种寄生虫的宿主
A hog's body plays host to all sorts of parasites,
吸血的蜱虫和虱子
bloodsucking ticks and lice...
躲在这些疣猪无法触及的地方
hiding in places they simply cannot reach.
至少没有帮手是无法触及的
At least, not without a little help.
这群猫鼬住在不远处
This band of mongooses lives close by.
它们是很爱聊天的群体
They're a chatty bunch
有着动物界中最复杂的语言之一
with one of the most sophisticated animal languages.
元音和音节的词汇量很大
Using a wide vocabulary of vowels and syllables...
它们讨论到哪儿去觅食
they discuss where to find food...
然后大家都同意
and everyone's agreed.
是时候进城了
It's time to hit the town.
体重大约150公斤
Weighing in at 330 pounds...
武装到牙齿的疣猪
...and armed to the teeth...
通常处在防御状态
warthogs are usually on the defensive.
但在乌干达这个小村子里