在人眼所能见到的极限之外 Beyond the limits of the human eye
生物暗藏着我们未曾想象过的秘密 life holds secrets we never imagined.
攻击速度快得看不见 Attacks, too fast to see
生与死的谜题 mysteries of survival and death
我们的团队将勇敢面对极端环境 Our crew will break extreme conditions
利用最先进的摄影技术 Using the most advanced photographic technology.
揭开生物之间的关系 to reveal these connections between living things
快一点,慢一点,再靠近一点 Faster, slower, closer.
捕捉大自然的美丽与残酷 capturing the beauty and brutality of nature
就在生物快慢间 at the speed of life.
生物快慢间 中美洲丛林生物
清晨5点 哥斯达黎加
在大自然里时间是以日升月落为基准 In nature, time is marked by the rise and fall of the sun and moon.
任何时候都有生物在睡觉 At any given moment some creatures sleep
有些生物则在觅食与猎杀 while others forage and kill.
为捕捉这24小时的周期 To capture this 24-hour cycle
一群野生动物摄影师 A team of wildlife photographers
必须和大自然的时钟同步 must sink up to natures clock.
否则他们的任务就会失败 Or their mission will fail.
他们已进入这个没有休息的国度 They've invaded a realm where there is no such thing as a timeout.
中美洲是全球生物多样性最丰富的荒野之一 Central America, one of the most biodiversed wildland on the planet.
由7个邻国组成 Consisting of 7 contiguous countries
它是被两大洋包围的陆地之桥 it's a bridge of land bordered by two oceans.
宽度不超过300哩 No wider than 300 miles across
覆满了湿热的丛林和雨林 and covered with steaming jungles and rainforests
等待着团队的是一个 Awaiting the team is a hidden realm
拥有50多万种动植物的隐藏国度 that contains over a half million plant and animal species.
对植物来说 for plant life,
湿度和温度使这里成了天堂 the moisture and temperatures make this region a paradise
但对动物来说 But for the creatures here
这个葱郁世界却是杀戮地带 this lush green world is one, big killzone.
不论日夜 By day and by night.
数千种生物都是夜行动物 Thousands of species are nocturnal.
但利用感光摄影机 But using light sensitive cameras
团队希望能捕捉到它们的秘密 the team hopes to capture their secrets
有时甚至还有它们残暴的一生 and sometimes, violent lives.
为生存奋斗的两个力量 Struggling to survive two forces
一个不断在发动攻击,一个不断在防卫 One on constant attack, the other on the defense.
也就是蛇与蛙 Snakes and frogs
这只树蛙利用保护色 This tree frog is perfectly camouflaged
完全隐藏在葱郁的背景里 against the background of lush greens.
但树叶中也充满了鲜艳花朵 But the foliages are also filled with brilliant flowers.
这里的动物已习惯这种对比 And the animals here have grown accustomed to the contrast.
这个鲜艳有毒的丛林居民 This brightly colored and toxic jungle dweller
拥有恶魔般的面容又爱吃蛙类 has the face of a demon and a taste for frogs.
它是敏捷的掠食者 It's an agile predator,
名字是来自两只眼睛上方的奇特鳞片 named after the curious scales above each eye.
黄睫角蝮蛇 The yellow eyelash viper.
它的毒牙尖锐如注射器 Armed with fangs as sharp as hypodermic needles
这条2呎长的雄蛇有两种速度 this two-foot male has two speeds.
慢速和超快速 Slow and incredibly fast.
它能用时速将近100哩的速度攻击 It can strike at speeds approaching 100 miles an hour.
睫角蝮蛇能原地不动埋伏 Eyelash vipers can lay and wait for hours
等待几小时甚至好几天 or days on end withour moving a muscle.
有些博物学家推测它的体色和行为 Some naturalists speculate his colory and behaviour
是在模仿静止的黄色兰花以诱骗接近的猎物 mimics a stationary yellow orchid to fool on coming prey.
这只绿色树蛙跳进了蝮蛇的杀戮地带 This green tree frog has hopped into the viper's killzone.
它似乎尚未察觉 seemingly unaware.
在它眼前的正是死亡杀手 It's now staring death, right in the face.
从实际时间看来,攻击动作快如闪电 In real time the strike is lightning fast.
但把画面调慢到每秒2000格 But slowed down to 2000 frames per second
蝮蛇的惊人攻击就此揭晓 the viper's awesome attack is revealed.
蝮蛇的中空毒牙注出少量毒液 A jolt of venom injected through the snakes hallow fangs
使树蛙动弹不得,同时被它生吞 immobilizes the frog as it's eaten alive.
这条雄蛇需要3天才能消化猎物 It will take this male three days to digest his kill.
然后它就会再次在夜里埋伏 Then once again he'll lay and wait
等待更多受害者 for more victims in the night.
现在逐渐明亮的光线 Now, the rising light
唤醒了新一批掠食者和猎物 awakens a new shift of predators and prey.
为了生存它们已发展出一些惊人策略 To survive, they've evolved some eye-popping strategies.
要亲眼见到才是困难的部分 seeing them in action is the hard part.
突破这些视觉障碍 Breaking through these visual barriers
需要先进的摄影机和光学仪器 requires advanced cameras and optics.
过来 Come through.
我们在寻找设置滑降绳索的理想地点 We're looking for an ideal spot to start a zip line
这是滑降装置 This is the zip line rig.
它是靠两颗机车电瓶发点 It runs on two motorcycle batteries.
它将会拉动1000磅的力量 It's gonna be pulling about 1,000 pounds of force on it.
安装在遥控载具上的滑降摄影机 A zip line camera mounted on a remotely operated vehicle
能穿越树冠层 can traverse the canopy.
它能以时速最高20哩的速度无声移动 It's built to move silently at speeds of up to 20 miles per hour.
并让团队有机会观察 And gives the team access to the animals
容易被侵入者惊吓的动物 that are easily spooked by intruders.
看来不错,启动电源吧 Yeah, it looks good man.
团队会在不同高度停下载具 The crew will stop the vehicle at different elevations.
并用伺服马达转动摄影机 and pan the camera with servo motors.
在树冠层中途出现一个模糊影像 Midway through the trees, a ghostly blur.
森林中最难以捉摸的生物之一 One of the forest's most elusive creatures.
新世界中最大的灵长类 The largest primate of the New World.
无庸置疑的树冠层之王 The undisputed king of the canopy.
吼猴 The howler monkey.
它能轻松在树与树之间移动 It can amble from tree to tree
就像我们穿越客厅一样 as easily as we cross the living room.
这只年轻吼猴初次离开猴群单独外出觅食 This young male has left his colony to forage alone for the first time.
它在树林间的速度,时速18哩 His top speed through the trees, 18 mph.
它用双脚和拥有5根手指的双手紧握住树枝 He clings to the branches using his feet and five-fingered hand.
吼猴也有第5只手 Howlers also have a fifth hand
也就是能抓握的强壮尾巴 in the form of a strong prehensile tail.
吼猴是挑食的素食者 Howlers are picky vegetarians.
并在生态系中扮演着散播种子的重要角色 And play a very important part in seed dispersal in the ecosystem.
但这只年轻吼猴的野餐 But this young howler's picnic
使它远离了它的猴群 has led him far away from his troop.
现在它迷路了 and now, he is lost.
角雕看中了这只吼猴 A harpy eagle has the howler in its sights.
而在它的树下 And down at the base of his tree
有一条80磅的巨蚺 an 80-pound boa constrictor.
它那可张得极开的嘴能吞下整只猴子 Its felixible jaws can swallow a monkey whole.
它锁定了吼猴的气味 It's homed in on the scent of the howler
并从丛林地面开始往上爬 and heads up from the jungle floor.
接着出现了不会搞错的声音 Then comes an unmistakable sound
是年轻公猴的猴群在表明位置 It's the young male's colony, marking their position.
它们名为吼猴不是没有原因的 They're not called "howlers" for nothing.
地球上唯一比吼猴还大声的生物就是蓝鲸 The only creature louder on earth is the blue whale.
利用叫声当作信标 Using the calls as a beacon
年轻公猴往猴群爬去 the young male heads for home
群体在一起才安全 where there is safety in numbers.
与其像黑猩猩一样摆动 Instead of swinging like chimps
吼猴已进化成能在树间跳跃 howlers have evolved to leap from tree to tree
它在几分钟内终于回家 Within minutes, he is home again.
吼猴喜欢吃甜食 Howlers have a sweet tooth,
而猴群找到了一些水果 and the clan has found some fruit.
尽管这些猴子很灵巧,它们却很懒散 In spite of their dexterity, these monkeys are sloppy.
但从树冠层上层掉落的 But what falls from the canopy's upper story,
却备受下层居民欢迎 is welcome by some residents in the basement.
蛇怪蜥蜴 The basilisk lizard.
它们的寿命约是10年 They have a life span of ten years.
但它们还得避开掠食者才行 But only if they avoid predators.
蛇怪蜥蜴的家园就在吼猴最爱的树林下方 Basilisks make their home directly below the howlers' favourite trees.
这只雌蜥蜴正在吃从树上掉落的食物 Here, this female dines on fallen scraps
还有来抢吃食物的昆虫 as well as the insects that come to eat them.
蛇怪蜥蜴依靠的是能融入当地植被的皮肤 Basilisk rely on skin pigments that match vegetation perfectly.
如同所有蜥蜴,它们的体温是来自太阳 Like all lizards they get their body heat from the sun.
它的双眼能各自移动 Her eyes move independently
并提供了卓越的颜色视觉以侦测猎物 and provide excellent color detection for both prey
和猎捕它的掠食者 and the predators that hunt her.
其中最致命的一种掠食者体色和花纹类似老虎 One of the deadliest shares its coloring pattern with the tiger.
而且也非常鬼祟 And its every bit is stealthy.
这种掠食者超难以捉摸 this predator is so elusive,
没人知道它们能活多久 no one knows how long they can live.
雄性能长到将近12呎长 Males like this, can grow nearly 12 feet long.
虎斑锦蛇 The tiger rat snake.
它几乎是见到什麽都吃 It will eat virtually anything it can get its fangs on.
它会藉由压缩杀死受害者再吞食它们 It kills its victims by constriction and swallows them.
这条雄蛇已锁定蛇怪蜥蜴的气味 Now this male is locked on to the scent of the basilisk.
这种蜥蜴的体重 The lizards weight is spread
是分布在强壮的腿和张开的脚趾上 through its powerful legs and widely-spread toes.
很快的 And very soon,
它是否能逃过一命就看它能跑得多快 her life will depend on just how fast they can move.
蜥蜴终于发现蛇的存在 The lizard finally senses the snake's presence.
它的保护色失灵了 Her camouflage has failed.
但它的下个动作却有如奇迹 But her next move is nothing short of miraculous.
只有一种办法能让猎物反败为胜 Just one way will see prey turn the tables on predators
那就是极速生命力 at The Speed of Life.
太阳几乎已升到天空顶端 The sun has nearly risen to its midday apex.
它由东到西每移动1度 Each degree of its journey from east to west
都代表了无数生物的挣扎 marked by the struggle of countless creatures
试着活过下个24小时 trying to survive another 24 hours.
中午12点06分 哥斯达黎加锡基雷斯
这只蛇怪蜥蜴的生命已走到十字路口 The life of this basilisk has reached a crossroad.
它的致命敌人,饥饿的锦蛇 Its mortal enemy, a hungry rat snake
已把它追到河边 has pursued her to the edge of the river.
蜥蜴只剩一个选择 The lizard has just one option left.
自然界中独一无二的脱逃策略 An escape strategy like none other in the natural worl
慢动作摄影机 Slow motion cameras
以每秒5呎的速度揭露它的动作 reveal her speed at 5 feet per second.
它的脱逃策略连傻瓜都懂 Her escape strategy is foolproof
因为没有任何掠食者能在水上跑 because no predator is equipped to run on water.
它的脚后下方形成了气囊 Air pockets form beneath her hind feet
提供足够浮力让它维持在水面上 just enough buoyancy to keep her up on the surface.
它大概能在水上跑15呎 These runs cover about 15 feet.
之后地心引力就会胜过蜥蜴的前进动作 After that, gravity overtakes the lizards forward motion.
时间约是6秒 Time elapsed, 6 seconds.
足以把虎斑锦蛇安全抛在脑后 Enough to leave the tiger rat snake safely behind.
在水上跑的另一个好处 And another benefit of running on water
是蜥蜴不会留下气味让蛇追踪 is that the lizard leaves no scent trail for the snake to follow.
眼前并没有掠食者 No predators inside.
至少在水面上没有 At least at the surface.
然而潜伏在底下的是一大威胁 But lurking below is a major threat
以非凡的保护色作为掩护 cloaked in its own extraordinary camouflage.
这只史前怪兽拥有尖利的上下颚 this prehistoric beast is armed with a pair of sharp-edged cutting mandibles
以及超有力的颚肌 and tremendously powerful jaw muscles.
它是30磅的磕头龟 It's a 30-pound snapping turtle.
拥有垃圾堆饥饿恶犬般的性情 With the temperament of a hungry junkyard dog.
这只母龟能轻易咬断你的手指 This female could easily snap off your finger.
时间甚至不到半秒 And do it in under half a second.
磕头龟不论死活什麽都吃 Snapping turtles eat virtually anything dead or alive.
而且任何时候都行 at virtually any time of the day.
而今天可能就是蜥蜴的死亡之日 and this day could spell doom for the lizard.
乌龟就在它的路径中 The turle is positioned directly in her path.
来自下方如闪电般迅速的攻击 A lightning fast attack from below
被乌龟的邪恶嘴巴咬住 caught in the turtle's vice-like jaws.
蜥蜴被拉进水里并被乌龟吃掉 The lizard is pulled below and consumed.
这次突袭惊扰了池塘周围最娇贵的居民之一 The ambush spooks one of the Pan's most delicate residents
它们的翅膀独特而惊人 The wings are unique and nothing short of amazing.
黑尾灰蜻 A blue skimmer dragonfly.
藉由改变移动方式 By changing the way they move
这只雄蜻蜓能朝各个方向飞行 this male can manouvre in all directions.
并像直升机般原地盘旋 And hover as steady as a helicopter.
为了控制方向 To navigate,
它的复眼约有30000个眼面 his eyes have about 30,000 lenses
形成发达的视力 for wrap-around vision.
但它今天正要飞往一个致命陷阱 But today, it's headed for a deadly trap.
由一群八脚杀手所设 Managed by a gang of 8-legged killers.
它们刚出生时体型小如针头 They start life about the size of a pinhead
6个月后却已长成宽达8吋的掠食者 6 month later, they're grown into predators with 8 inch leg spans.
第一次透过慢动作微距摄影观察这种动物 Seen for the first time in slow motion macro photography
这些脉动孔或称呼吸孔 this pulsating flaps or spiricles
能调节蜘蛛呼吸系统内的二氧化碳和含氧量 regulate levels of CO2 and oxygen in the spider's respiratory system.
它们只能活一年左右 They only live about a year.
但它们在死前每天必须不断猎杀并吃掉猎物 But only if they kill and eat their prey from sunrise to sunrise before they die.
这只人面蜘蛛掌管着一张危险丝网 This golden orb web spider oversees a treacherous network of silk.
很少有闯进这张复杂蜘蛛网的生物能够逃脱 Few creatures that fly into the complex web she's helping to build ever escape.
而蜻蜓也一样逃不了 And the dragonfly is not one of them.
慢动作摄影揭露 Slow motion photography
它以时速36哩的速度冲进蜘蛛网 reveals it hitting the web at 36 mph.
当它挣扎着要逃脱 As it struggles to escape
这只雌性人面蜘蛛用毒牙注入神经毒素 the dragonfly is killed by female orb weaver with a jolt of nerotoxins
因此杀死了蜻蜓 injected through her fangs.
直到现在这只体型仅雌性1/10的雄性蜘蛛 Only now will this male spider, 1/10 her size,
才敢加入它 dare to join her.
当雌性忙着吃猎物 While the female is busy with the kill
它也想吃一口 it considers grabbing a scrap
但后来还是决定退避 but decides to back off.
它们之间并没有爱 There is no love here
在交配之后,雌性将会吃掉它 After mating, the female will eat him.
在蜘蛛网别处 Elsewhere on the web,
另一只雌性已杀死它的配偶 another female has already killed her mate.
当它开始吃掉它 As she begins to devour him
它的姐妹也开始修补蜘蛛网 Her sister deals with web maintenance and repair.
由于这过程非常复杂又很耗时间 Because this process is complex and time-consuming
至少有6只雌蜘蛛必须团结合作 at least a half dozen females must work as one.
那是这种蜘蛛独有的合作策略 A cooperative strategy, unique to their species.
蜘蛛丝是一种特殊腺体所生产的蛋白质 Silk production begins with proteins, produced by a special gland.
当雄蜘蛛准备要结网 When she is ready to weave
它会用脚从腹部的中空喷口拉出丝 the female uses her legs to draw thread out through a hallow nozzle in her belly.
蜘蛛网是由两种纤维组成 The web is made of two different fibres.
一种是用来捕捉猎物的粘稠丝 One is sticky to catch animals.
另一种则是平滑的拖牵丝 The other type, called "drag line" is smooth.
蜘蛛会利用拖牵丝在蜘蛛网上行走 Spiders use drag line strands to walk the web
而不会像受害者一样受困 without getting stuck like their victims.
一条粗如铅笔的蜘蛛丝线 A thread, the diameter of a pencil
足以拖住一架降落在航空母舰上的战斗机 could restrain a fighter jet landing on an aircraft carrier.
没有任何人工纤维能比它坚韧 No man-made fibre even come close at strength.
6只雌蜘蛛大约要花上300小时 It will take the team of 6 females roughly 300 hours
才能织好自然界中最致命的奇迹之一 to complete one of the deadliest wonders of the natural world.
它挂在两棵树之间 It's suspended between two trees
阻挡了雨林中最繁忙的飞行区之一 and it's blocking one of the busiest fly zones of the rainforest.
总面积有惊人的200平方呎 Total area, a staggering 200 square feet.
蜘蛛必须清除带有残骸的蜘蛛网并不断修补 The spiders need to rid the web of all debris and constantly repair it
为每分钟不断冲进网里的新受害者制造空间 to make room for new victims that hurdle into the web every minute.
一只蝉冲进了蜘蛛网中央 A cicada ploughs into the web's center
却从之前的猎物所造成的破洞逃脱 But escapes through a tear left by a previous kill.
它们必须赶紧修补蜘蛛网 The damage must be spot repaired.
否则就会丧失更多猎物 Or other potential meals will be lost.
保养得宜的蜘蛛网能维持长达两年 A well maintained web can last as long as 2 years,
比有些织网的蜘蛛还长寿 outliving some of its builders.
但在雌蜘蛛们完成修补工作前 But before the females can finish the day's repairs
它们的巨大蜘蛛丝陷阱却遭到重击 their giant silk trap suffers a massive blow.
而这只果蝠将落入可怕的困境 And this fruit bat will find himself in a terrifying predicament.
稍后请看绿色幽灵使出死亡跳跃 Coming up, a green phantom makes a death defying leap.
更有蛙卵逃脱猫眼蛇的精彩情节 And later, caviar for cat for a cat-eyed predator.
下午4点6分 哥斯达黎加锡基雷斯
在中美洲 In Central America,
正午的太阳开始缓缓落下 the midday sun begins its slow decline
给热得不行的团队些许慰藉 giving the team some relief from the oppressive heat
因为他们必须记录生与死的抗争 as they capture a life or death struggle
而这只是深深丛林的开端而已 that's just beginning deep in the rainforest.
这只公果蝠从没料到会发生这种事 This male fruit bat never saw it coming.
它越是挣扎就有越多蜘蛛丝黏在它身上 The more it struggles, the more sticky thread adheres to its body
把蜘蛛网越扯越破 tearing the web.
为杀死果蝠 To kill the bat,
所有雌蜘蛛必须用毒液同时攻击 all the females would have to attack at once, using all their venom.
但是要靠得够近好用毒牙攻击 But getting close enough to plunge in their fangs
将会让它们因靠近公果蝠的一幅尖牙 will expose them to death from sharp teeth
而有生命危险 that lie in the male's jaws.
最好的策略就是让时间和蜘蛛网慢慢杀死它 The best strategy, let time and the web do their dirty work.
年轻果蝠越是挣扎 The more the young bat struggles
就会越被缠住并且越疲累 the more mashed and exhousted he'll become.
当果蝠稍微挣脱 As the bat frees one part of his body,
身体的另一部分又会被缠住 another part gets caught.
人面蜘蛛的策略似乎很有效 The orb weaver strategy seems to be working.
直到果蝠也想出它的策略 Until the bat comes up with one of his own.
它开始咀嚼超强韧的蜘蛛丝 It begins to chew through the supertough strands
并把动作维持到最小 keeping his movement to a minimum.
当公果蝠还剩一条蜘蛛丝缠着 As the male bat hangs by a silk noose
它的刽子手决定在它逃脱前逼近 his execution has decided to close in before he can escape.
用尽最后一丝力气,果蝠终于挣脱 With his last ounce of strength, the bat breaks free.
它的飞行路径带领它向上 His flight path takes him upward
穿越至今难得被探索的树冠层高度 through levels of the canopy seldom explored until now.
这是不同生物居住在不同高度的世界 This is a world, where different creatures live at different heights.
为拍摄它们 Getting to all of them
团队必须让摄影机 means rigging the camera to move vertically
在各个树冠层栖息地之间垂直移动 from one canopy habitat to the next.
为完成任务 To accomplish their mission
他们在一棵大树顶端挂了一条绳索 they anchor a line at the top of a high tree.
和绳索连接的是高强度轻量滑车 Attached to the line, a high-strength lightweight sled
把遥控摄影机向上载送 to carry a remote controlled camera skyward.
这个垂直世界住着大自然中最隐秘的物种 This vertical world is inhabited by nature's most elusive species.
其中最惊人的居民之一 One of the most striking residents
会从头盖骨长出冠状脊椎 grows a crown of spines from its cranium.
这种动物是住在树木的中空部分 This creature makes its home in the hallows of the trees.
它就是冠顶树蛙 The coronated tree frog.
它的敏锐眼睛会观察树叶和树枝 Its sensitive eyes scan the leaves and branches for predators
寻找玉雨林生物都害怕的掠食者 that haunt every story of the rainforest.
这个掠食者静静地滑行着 This one, slither silently.
鳞片所形成的保护色酷似树冠层的闪耀阳光 Camouflaged by a scale pattern that mimics the specled sunlight of the canopy.
它是猫眼蛇 The cat eyed snake.
其名是来自如猫般的椭圆瞳孔 Named after its cat-like eliptical pupils.
那是为了随树冠层会改变的光线而调整 They're designed to adjust to the canopy's changing light conditions.
这是条饥饿的雌蛇 This one is a hungry female.
它最爱的猎物就是雨林之宝 Her favourite prey, the jewels of the rainforest.
树蛙 Tree frogs.
位于手指和脚趾尖的吸盘 Adhesive disks on the tips of their toes and fingers
让它们能在任何表面上攀爬 allow them to climb up any surface.
有些树蛙像是这只4吋长的成年树蛙 Some species, like this 4 inch male adult
拥有奇特似蹼的手脚 have legs and hands large with strange, flipper-like webbing.
团队即将发现这些奇特手脚的作用 The team is about to discover what these strange hands and feet are designed for
当猫眼蛇靠近树蛙 when the cat eye closes in on a frog.
雄树蛙只有几秒能活 The male has only seconds to live.
无法避开蛇 Unable to evade the snake
它的下个动作解释了它为何叫做飞蹼树蛙 His next move explains why he is called the flying tree frog.
树蛙在距离林地表层3层楼的高处跃向空中 The frog jumps into space, some three storys above the forest floor.
飞蹼树蛙弓起背部 The flying tree frogs arch their backs
并像高空跳伞者一样张开手脚 and extend their arms and legs like skydivers.
它们利用带蹼的手脚来控制降落 They use their webbed hands and feet to make a control of descend.
雨林蛇蛙之间的另一场史诗战争 Another battle in the epic war between rainforest snakes and frogs
就在飞行两栖动物的安全降落中结束 ends with a safe landing for the flying amphibian.
但猫眼蛇对树蛙贪得无厌的渴望 But the cat eyed snake's insatiable thirst for frogs
却因为失败而更加强烈 is only intensified by the defeat.
它们有很多目标可选择 There are plenty more targets to choose from,
而这个目标可飞不了 and this one can't fly.
红眼树蛙 The red-eyed tree frog.
现在正值交配季节 It's the middle of the breeding season
这只雌树蛙已产下它的蛋 and this female has already laid her clutch of eggs.
它把蛋产在一片宽树叶上 She's left them on a wide leaf
让太阳的热度为它们保暖 where the heat of the sun will keep them warm.
每颗蛋里都有一只充满脂肪的蝌蚪 Each egg contains a tadpole, full of fat.
是饥饿猫眼蛇的完美飨宴 The perfect feast for the hungry snake.
为延续下一代 To perpetuate her species
雌树蛙必须引蛇远离它的蝌蚪 the female frog must lead the snake away from her tadpoles.
为此它会采用以颜色为基础的生存策略 To do this, she'll use a survival strategy based on color.
猫眼蛇是靠嗅觉来追踪猎物 Cat-eyed snakes rely on their sense of smell to track their prey.
但它们也会利用视觉 But they also use their vision.
那正是树蛙要利用的一点 And that's what the frog is counting on.
当雌树蛙一感觉到蛇 The female bulges her bright red eyes
它会睁大鲜艳的红眼 the second she senses the snake.
并展现侧腹的生动色彩 She also shows the vivid colors on her flanks.
蛇眼会紧紧锁定鲜艳的红色和绿色 The snake's eyes lock tightly on these brilliant reds and greens.
当树蛙跳走时 When the frog jumps away,
掠食者的眼睛会停留在鲜艳的双重影像上 the predators eyes remain focused on her colorful ghost.
这只雌树蛙无法从高空往下跳 This female can't skydive.
但它的跳跃距离可达自身长度的10倍 But she can jump 10 times her body length.
树蛙安全了,但它的蛋并不然 The frog is safe, but not her eggs.
根据它们的气味 Following their scent,
蛇来到这顿垂手可得的大餐 the snake slides up to a massive feast, there for the taking
这些多汁的树蛙蛋能供养猫眼蛇长达72小时 This juicy globe of frog caviar could sustain the cat-eyed for up to 72 hours.
但在这个惊人世界里 But in this amazing world,
就连未出生的生物都有一套生存策略 even the unborn have strategies for survival.
稍后请看潜伏在森林地表的毒恶杀戮机器 Coming up, a venomous killing machine stalks the forest floor.
更有携带毒性黏液的夜间杀手 And later, a night hunter armed with toxic goo
下午4点20分 哥斯达黎加奥沙半岛
太阳是哥斯达黎加雨林中所有生命的赋予者 The sun is the giver of all life in the rainforests of Costa Rica.
它也是衡量所有生命速度的时钟 It's also the clock that measures the speed of life for all living things here.
其中最脆弱的就是年轻生物 Most vulnerable are the young.
包括这群红眼树蛙的蝌蚪 Among them, this clutch of red-eyed tadpoles.
对团队来说,树蛙蛋看来完全暴露在外 To the team, the eggs look completely exposed.
而且易受任何掠食者攻击 And vulnerable to any predator.
但当猫眼蛇靠近,结果并不确定 But as the cat-eyed snake moves in, the outcome is less certain.
就算在卵囊了 Even in their egg sacks,
蝌蚪仍能感受掠食者和一阵风的差异 tadpoles can sense the difference between a brush of a predator from a wisp of wind.
当蛇在决定要先吃哪个宝宝 As the snake decides which baby to eat first
来自它舌头和身体的振动 the vibrations from its tongue and body
启动了年轻树蛙的警报 sets off an alarm in the young frogs.
突然间它们的大脑和神经系统会加速发展 Suddenly, the development of their brains and nervous systems speeds up
提供每只蝌蚪足够的协调能力 providing each tadpole just enough coordination
让它们突破卵囊 to burst free from their eggsacks
用超慢动作拍摄蝌蚪的精彩逃脱正要开始 Shot in super slow motion the tadpoles' great escape begins.
由于集体逃脱如此完整 The mass break out is so complete
蛇最后只吃到几只蝌蚪和满嘴凝胶 the snake winds up with just a few young and a mouthful of jelly.
其余蝌蚪都逃走了 The rest of the tadpoles wiggle away.
如泪水般掉落在树叶间 Dropping like tears from leaf to leaf
它们的最终目的地就是森林水池 their ultimate destination, a forest pool.
树蛙把蛋蛋产在静水上方并非偶然 It's no accident that tree frogs are wired to lay their eggs overstanding water.
无助的猎物反将掠食者一军 Helpless prey have turned the tables on the predator.
证明在这片哥斯达黎加雨林里 Living proof that here in the Costa Rican rainforest
团队应该随时准备迎接突来的状况 the team should expect the unexpected.
巴拿马 下午5点03分
在林地表层 Down on the forest floor,
一个拥有粉红脚趾的掠食者正要出外猎食 a pink toed predator sets off to hunt.
正如上方的树冠层 Just like the canopy above
生活在雨林地面的生物 the cratures that live on the rainforest floor
为了适应环境已发展出一些意想不到的特征 have evolved to adapt some startling features.
这个生物拥有灵活的腿和强大的毒牙 This one is armed with agile legs and powerful fangs.
粉红趾狼蛛 The pinktoe tarantula.
林地表层的每个角落里都爬着八脚猎食者 Every nook and cranny at the forest floor is crawling with 8-legged hunters
其中一种并没有比狼蛛的脚趾大多少 One of them isn't much bigger than a tarantula's toe.
但它的致命特征和高超的猎食能力 But its deadly features and hunting prowess
却是无与伦比 are unsurpassed
这种伏击掠食者 An ambush predator,
是潜藏在林地表层的低矮树丛里 it lurks in the bushes just over the forest floor.
越靠近观察,它就越为惊人 The closer you look at it, the more awesome it gets.
它会用8只眼睛观察猎物 It scans for prey through 8 eyes.
蝇虎蜘蛛 The jumping spider.
这只微小猎食者的体重只有0.015克 This tiny hunter weighs just 0,015 grams.
藉由改变体液的压力 By altering the pressure of his body fluid
这只雄蜘蛛的腿能释放惊人能量 the legs on this male could out incredible energy
而不需要大块肌肉 without the need for large muscles.
在它下方这只苍蝇并不知道它已成为目标 Just below him, this fly is unaware it's being stalked.
给了蜘蛛足够的时间发动大胆攻击 This gives the spider just enough time for a daring attack.
这只雄蜘蛛用一条蜘蛛丝系好自己 The male tedders himself with a strand of silk.
然后像个高空弹跳自杀客 Then, like a suicidal bungee jumper
它朝着目标跃向空中 he leaps into space at his target.
透过超级慢动作 Seen in superslow motion
这只蜘蛛自由落体的距离 the spider freefalls
相当于自身长度的100倍 100 times his body length
成功几率却是未知数 The odds of success, unknown.
稍后请看能致命的皮肤 Coming up, skin that kills.
奇幻菌类的最真一面 Magic mushrooms that bend reality.
更有雨林中的传奇缓行隐者 And later, the rainforest legendary slow motion hermit
沐浴在阳光下的精彩画面 comes into the light.
巴拿马 下午5点34分
当太阳渐渐西下 As the angle of the sun declines
雨林的温度也开始下降 the rainforest thermostat dials down
温度才下降5度 just a five degree temperature drop
就足以启动新一批的掠食者和猎物 is enough to activate a new shift of predators and prey.
对这个卓越猎食者来说 For this extraordinary hunter
48小时没捕获猎物就代表了饥饿和死亡 48 hours without a kill means starvation and death.
它就是雄性影虎苍蝇 The male jumping spider.
它的目标 His target,
就是在它下方的一片树叶上休息的森林苍蝇 a forest fly resting on a leaf far below him.
这是孤注一掷的跳跃 Now, an all or nothing leap
为了活过这一天 to survive for another day.
精准的降落使蜘蛛和猎物近在咫尺 A pinpoint landing puts the spider within striking distance of this prey.
接着它加强液压使腿部更强壮 Next, he pumps up the hydrolic pressure
以进行最后的扑袭 that powers his legs for a final launch.
它从隐藏的毒牙注出毒液 He delivers a shot of venom from his hidden fangs.
当苍蝇在蜘蛛致命的攫取中挣扎 As the fly struggles in the spider's deadly grasp
双方都失去了平衡 both lose their footing.
但这名刺客身上还系着从发动攻击处 But this assassin is anchored to a safety line
就系好的安全线 from where he initiated his attack.
吃完苍蝇后,它还要去寻找更多猎物 After feeding, it's time to hunt for more games
就在更低的林地表层 on the lower forest floor.
在这里,看来像是广阔落叶层的土地 Here, what looks like endless expanse of dead leaf litter
其实也有属于自己的生命 actually has a life of its own.
满地的真菌在一天内就能完全成熟 Fast carpets of fungi grow to maturity in just a single day.
臭味吸引了爱吃真菌和孢子的昆虫 The rank smell attracts insects that eat fungus, spores and all.
当昆虫分泌真菌孢子 When insects excrete fungus spores,
新的真菌就会开始生长 new colonies grow
覆盖面积多达2200英亩的土地 covering areas as large as 2200 acres.
蕈类和植物的鲜艳色彩经常警告了大家 Bright colors on mushrooms and plants are often warnings
它们含有剧毒 they contain lethal poisons.
那在动物身上也适用 And that can hold true with animals as well.
这种生物的鲜艳皮肤正是终极范例 The glowing pigments on the skin of this creature are the ultimate example.
就是箭毒蛙 Poison dart frogs.
这种生活在林地表层的两栖动物 These forest floor amphibians
有非常强烈的地域性 are fiercely territorial
而且是全球最毒的动物之一 and among the most toxic animals on earth.
身长约是一枚回纹针大小 About the length of a paper clip
这只娇小雌蛙的皮肤所分泌的毒素 the poisons oozing from the skin of this tiny female
足以在短短几分钟内杀死10个成人 are potent enough to kill 10 grown men in a matter of minutes.
这种箭毒蛙的舌头能伸出自身长度的1/4 The frog can shoot his tongue out a quarter of his body length.
动作超快 The action is so fast
它的昆虫猎物根本没机会逃走 his insect prey has literally no chance to escape.
科学家推测这种箭毒蛙 Scientists speculate that frogs
能从它们吃掉的昆虫毒素中累积毒液 accumulate their venoms from the poisons of the insects they eat.
现在黑暗已侵入树冠层 Darkness now creeps into the canopy
晚间8点42分 哥斯达黎加加勒比海坡
当最后一道光线在树叶上逗留 As the last rays of light linger on the leaves,
精巧的幻影现了身,开始夜间活动 delicate phantoms emerge to start the night shift.
其中最令人屏息的生物 One of the most breath-taking creatures
看来较像是无价的水晶雕像 looks more like a priceless crystal figurine.
这种难以捉摸的掠食者 This elusive predator
很快就会展开今晚的第一次猎杀 will soon make its first kill of the night.
稍后请看携带毒性黏液的夜间杀手 Coming up, a night hunter filled with toxic goo.
以及雨林中爬行的多毛生物 And the hairiest creeper of the rainforest.
雨林的太阳是自然时间的主发条 The rainforest sun is the main spring of natural time
对中美洲雨林的所有生物来说 for all life in Central America's rainforests.
但当白天转换成夜晚 But as day cycles to night,
流逝的每分钟都会揭晓 each passing minute reveals
生存策略较像是科幻片的生物 creatures with survival strategies that seem more like science-fiction in fact.
晚间8点42分 哥斯达黎加加勒比海坡
这种生物超难以捉摸 This one is so elusive
它非凡的自然历史也鲜为人知 little is known of its extraordinary natural history.
我们只知道它的保护色是自然界的奇迹 What we do know is its camouflage as a wonder of the natural world.
玻璃蛙 The glass frog.
这只雌蛙的体型相当于一片人类指甲 This female is about the size of a human fingernail.
它是住在林地表层的落叶层下 It makes its home under the leaf litter at the forest floor.
透过微距镜头观察它的腹部皮肤超透明 Seen through a macro lens, her belly skin is so translucent
跟一粒米差不多大的红色心脏显而易见 her red heart about the size of a rice grain is clearly visible
1分钟跳动40下 beating 40 times a minute.
有些生物学家推测腹部色素的缺乏 Some biologists speculate that the lack of belly pigmentation
能让树叶反射的光线透过玻璃蛙的身体 allows light reflected off the leaves to shine through the glass frogs body
使它散发绿光 cloaking it in a green glow.
但就算是这种美丽的生物也得进食 But even this gorgeous creatures have to eat.
它们会吃小型昆虫,有时还会吃自己的幼虫 They'll feed on small insects and sometimes, their own young.
当玻璃蛙在下层植被中觅食 As the glass frog prowls the understory
另一种惊人生物也出现在林地表层 another fantastic creature haunts the forest floor.
这最奇特致命体色的案例 The most bizarre example of deadly coloration
同时也是一个进化奇迹 is also a marvel of evolution.
天鹅绒虫是甲壳昆虫和蠕虫之间 The velvet worm is a missing evolutionary link
失落的进化环节 between hard-shelled insects and the worm family.
它是靠数十只叶状伪足爬行在林地表层 It creeps around the forest floor on dozens of false legs called "lobal pods"
那是和腹部相连的无接缝足部 which are unjointed fleshy extremities connected to the abdomen.
它那纤薄鲜艳的皮肤看来就像丝绒 Its thin, colorful skin looks velvety
因为上面覆满了数以千计的感觉毛 because it's covered with thousands of sensory hairs
或许能协助找到猎物 that may help it locate prey.
荧光体色是为了警告它们的身体充满剧毒 The Day-glo colors are a warning that their bodies are highly poisonous.
事实上天鹅绒虫能从触角下方的喷口 Velvet worms can actually spit a toxic adhesive goo
喷出有毒的黏液 from nozzles below its antennae
使攻击者或猎物动弹不得并死亡 to immobilize and kill attackers or prey.
团队是在黎明时分开始这趟旅程 The team began this journey at dawn.
而再过几小时太阳又会再次升起 And in a few hours the sun will rise once more.
夜晚的最后几小时 Now, the last hours of night
为雨林中最奇特的生物之一 provides a measure of safety for one of the oddest creatures
提供了安全庇护 in all the rainforest.
体型有如一只小型犬 The size of a small dog
这些慢吞吞的家伙身上覆满了湿毛 these slowpokes are covered with damp fur.
它们的动作每小时最快只有15呎 Absolute top speed, 15 feet an hour.
唯一比树懒还慢的就是动作较慢的树懒 The only thing slower than a sloth is a sloth that's slower.
它们几乎一辈子都住在树冠层里 They live almost entirely in the canopy
偶尔才会为了喝水或换个一棵树 descending on long-nailed feet
用带有长趾甲的脚往下爬 for the occasional drink of water or to change trees.
今晚这只树懒似乎被团队的遥控摄影机 Tonight, this one seems intrigued
挑起了兴趣 by team's remote camera.
这只母树懒安详慵懒的目光 The tranquil hypnotic gaze of this female
代表中美洲荒野的一天已接近尾声 signals that a day in the life of Central America's wildlands has come to a close.
我们在这一天揭露了非凡的适应能力 A day that has revealed extraordinary adaptations
从能够在水上跑的生物 from creatures that can run on water
到为了生存而从高空跳下的生物 to those who skydive for survival.
在这个国度,就连未出世的生物 This is the realm where even the unborn
都得奋力求生 are wired to survive.
远方的吼猴也会为家人指引回家的路 And the distant howls of family show the way home.
都在生物快慢间 All at The Speed of Life.