冰 冻 星 球 Ⅱ
冬天，在地球的顶端 In winter, at the top of the planet
是一片冰冻的荒野... lies an icy wilderness...
..不是陆地而是冰冻的海水 ..not of land but of frozen water.
北冰洋 The Arctic Ocean.
它的表面形成了一个几乎坚固的平台 Its surface forms an almost solid platform
比整个美国还大 that is bigger than the whole of the United States.
它的存在和状况 Its presence and condition
主宰着所有生存在这里多种多样的动物 dominates the lives of all the many and varied animals
包括生活在冰上的... that live both on it...
..和生活在冰下的 ..and beneath it.
在接下来的几个月里，太阳的温暖 In the coming months, the sun's warmth
会融化大部分冰块，露出下面丰富的水域 will melt much of it and expose the rich waters beneath.
为了能在这里生存，生命必须适应这个世界 To survive here, life must adapt to this world
并在冰和水之间自由穿梭 that alternates between ice and water.
冰 冻 海 洋 校对 chenym
大卫·艾登堡 解说
经过三个月的冬日黑暗， After three months of winter darkness,
太阳从北极挪威升起 the sun rises across Arctic Norway.
新出现的北极熊妈妈 A newly emerged polar bear mother
鼓励幼崽在海冰上迈出第一步 encourages her cubs to take their first tentative steps on the sea ice.
幼崽会和妈妈一起呆两年， Cubs will stay with their mothers for two years,
学习在这里生存所需的技能 learning the skills needed to survive out here.
但此后，它们将独自一人 But thereafter, they will be on their own.
前往更远的海冰上…… Further out on the sea ice...
..这只年轻的母熊，不到六岁， ..this young female bear, less than six years old,
已经完全独立生活了 is already fully independent.
她非常适应这里的冰冻海洋生活 She's superbly adapted to life on the frozen ocean,
厚厚的保温脂肪和双层毛皮 protected from the cold by thick, insulating fat
可以抵御寒冷 and a double layer of fur.
每年的这个时候是觅食的最佳时间 This time of year is the best time for feeding.
母熊所依赖的是环斑海豹 The ringed seals on which she depends
海豹一般以鱼为食 feed on fish
并在母北极熊身下 40 米处游泳 and are swimming 40 metres beneath her.
但是在下面十分钟后， But after ten minutes down there,
海豹们必须回到冰层中的几个缝隙 they must return to the few gaps in the ice
呼吸空气，休息一下 to take a breath and rest.
她有灵敏的听力 She has acute hearing
并有几乎是自然界中最敏感的鼻子 and one of the most sensitive noses in nature.
她可以探测到在冰雪两米以下的海豹巢穴 She can detect a seal's lair beneath two metres of snow and ice.
时机就是一切 Timing is everything.
只有十分之一的尝试能够成功 Only one in ten attempts is successful.
所以对于一只年轻的熊来说，餐餐都很重要 So for a young bear, each meal is very important.
但是一只雄性已经闻到了杀戮的气味 But a male has picked up the scent of the kill.
大型雄性构成真正的威胁...... Large males pose a real threat...
..并且可能在打斗中造成致命伤害 ..and could inflict fatal injuries in a fight.
但她坚持自己的立场 But she stands her ground.
不寻常地是，它们不是打一架... Remarkably, rather than fight...
..而是，开始玩起来 ..they start to play.
接着， And then,
它们一起出发去探索 they set off to explore together.
吃饱了，并尚处年轻 Well fed and still young,
这两只熊似乎正在建立友谊 these two seem to be forming a friendship.
她炫耀游泳技术 She shows off the swimming skills
这使她能够轻松地在水和冰之间移动 that enable her to move with ease between water and ice.
她在你身后！ She's behind you!
在冰上跳舞... Dancing on ice...
..显然，只是为了开心快乐 ..apparently, just for the joy of it.
在一起三个小时后，它们分手了…… After three hours together, they part company...
..并再次回到它们影只形孤的生活中 ..and return once again to their solitary lives.
北极熊在每年的这个时候茁壮成长 Polar bears thrive at this time of year
多亏了巨大的海冰平台，它们可以在上面捕猎 thanks to the huge platform of sea ice on which they can hunt.
北冰洋 The Arctic Ocean lies
横跨北半球顶部 across the top of the northern hemisphere
和北极本身... and over the North Pole itself...
..被三大洲包围- ..and is surrounded by three continents -
欧洲、北美洲和亚洲 Europe, North America and Asia.
冬天，海冰延伸 In winter, the sea ice extends
面积超过五百万平方英里 across an area of over five million square miles.
但在俄罗斯北极沿岸， But off the coast of Arctic Russia,
一小潭海水一直敞口着…… a tiny pocket of water has been kept open...
.. 30 头被困的白鲸不断搅动 ..by the continuous stirring of 30 trapped beluga whales.
这些四米长的北极鲸适应能力极强 These four-metre-long Arctic whales are superbly adapted
北极鲸在海冰面下很远的地方狩猎 for hunting far beneath the surface of the sea ice.
尽管如此，作为哺乳动物， Nonetheless, being mammals,
它们必须回到海面呼吸 they must return to the surface to breathe
每15分钟左右一次 every 15 minutes or so.
但这次寒流异常严重 But this cold spell is exceptionally severe.
并且在 20 英里范围内没有第二个呼吸孔 And there's not another breathing hole within 20 miles.
附近的鱼和鱿鱼早就消失了 Nearby fish and squid disappeared long ago.
这些瘦弱的鲸鱼被冰封住了五个月 These emaciated whales have been imprisoned by the ice for five months,
它们现在正在挨饿 and they're now starving.
它们唯一的逃生机会将要来了 Their only chance of escape will come
每当季节发生变化时 when there is a change in the season.
春天终于到达地球的北方时， As spring finally reaches the north of the planet,
气温上升至冰点以上 air temperatures creep above freezing.
坚不可摧的冰顶开始破裂 The impenetrable ice ceiling begins to fracture.
小而救命的渠道打开了…… Small, life-saving channels open up...
..带来了自由 ..bringing freedom.
但春天对白鲸来说是一个危险的时期 But spring is a dangerous time for beluga.
随着潮汐和洋流将冰层分开， As tides and currents pull ice apart,
白鲸发现自己 the beluga find themselves
正处在流动的浮冰迷宫中 in a labyrinth of shifting ice floes
这些浮冰可以闭塞它们的呼吸孔洞 that could close their breathing holes
任何时点，都能淹死它们 at any point and so drown them.
它们使用精密的声纳， Using their sophisticated sonar,
试图在冰冷的迷宫中寻找出路…… they try to find a way through the icy maze...
..最终到达一片开阔水域 ..and eventually reach a patch of open water.
它们不是这里唯一的鲸鱼 They're not the only whales here.
独角鲸， Narwhal,
海中的独角兽，与白鲸关系密切 the unicorns of the sea, are closely related to beluga.
在一次罕见的相遇中， In a rarely seen encounter,
这两种鲸鱼似乎在交流 these two kinds of whales appear to socialise.
谁知道它们之间发生了什么？ Who knows what's going on between them?
但很快，它们就一起出发了 But soon, they set off together
穿过不断变化的冰原…… through the shifting fields of ice...
..长达 1,000 英里的旅程... ..a journey of up to 1,000 miles...
..在它们到达无冰水域之前， ..before they reach ice-free waters,
它们可以在那里抚养孩子 where they can rear their young.
随着春天的阳光越来越强， As the spring sunshine strengthens,
格陵兰岛海岸破碎的浮冰 the broken pack ice off the coast of Greenland
变成了托儿所 becomes a nursery.
竖琴海豹幼崽 又称格陵兰海豹 A harp seal pup.
刚出生一周 Born just a week ago.
它的脂肪很少 He has little fat.
它厚厚的皮毛 His thick fur
是它免受北极寒冷的唯一保护 is his only protection from the Arctic chill.
在瞌睡之间，等着母亲回来 In between dozes, he waits for his mother to return.
母海豹一年只有一只幼崽... She has only one pup a year...
..并且只会生产供 12 天的乳汁， ..and will produce milk for only 12 days,
自然界中最短的哺乳期之一 one of the shortest nursing periods in nature.
这已经足够 That is just long enough
可以让幼崽长出一层厚厚的海兽油…… for him to develop a thick layer of blubber...
..多亏了妈妈的乳汁，其中含有 50% 的脂肪 ..thanks to his mother's milk, which is 50% fat.
它的母亲留在身边 And his mother stays alongside
同时，它学习一项重要的生存技能 while he learns an important survival skill
对于任何海豹... for any seal...
..如何游泳 ..how to swim.
它可能并不热衷于冒险 He may not be keen to take the plunge.
毕竟，盐水是零下两摄氏度 The saltwater is minus two degrees Celsius, after all.
幼崽开始狗爬式 Pups start with a doggy paddle.
妈妈安心地保护在身边 Mum stays reassuringly close.
还在生长着保温油脂， Still developing his insulating blubber,
幼崽有体温过低的风险 a pup is at risk of hypothermia
所以需要休息 so needs to rest
和暖身 and warm up.
每天， Each day,
它又增加了两公斤... he puts on another two kilos...
..和练习游泳 ..and practises swimming
再长长一点 for just a little longer.
自出生以来，这只幼崽的体重增加了两倍， Since birth, this pup has tripled in weight,
幼崽在这个好奇的世界里很安逸 and he's now at ease in this curious other world.
12天过去了 12 days gone by.
妈妈的抚养工作完成了 A mother's work is done.
在分泌乳汁的过程中，她减掉了三分之一的体重 In producing milk, she's lost a third of her body weight.
现在她必须回到觅食地 Now she must return to her feeding grounds.
她将再也见不到她的幼崽了， 回望无期...... She will never see her pup again.
接下来的四个星期它独自度过， The next four weeks he spends alone,
紧贴冰台…… sticking close to the ice platform...
..靠它储备的脂肪生存 ..surviving on his fat reserves
直到它的绒毛被一件光滑的外皮所取代 as his downy fleece is replaced by a sleek coat
这更适合游泳 more suited to swimming.
但现在北极的气温 But temperatures in the Arctic are now
上升速度比以往任何时候都快…… rising faster than ever before...
..每年早春，生成的风暴打碎浮冰 ..creating storms that break up the ice floes earlier each spring.
竖琴海豹幼崽 Harp seal pups are being tipped into freezing waters
在它们未准备好长时间忍受大海之前，就被匆匆推入海水中 before they're ready to endure long periods at sea.
在一些幼崽区，几乎没有幼崽存活 In some pupping areas, almost none survive.
随着春夏交替， As spring turns to summer,
海冰上的生命突然开始繁衍 life on the sea ice suddenly begins to proliferate.
日光逐渐增强， The daylight increases,
一直处于休眠状态的藻类 and algae that had remained dormant
整个冬天都在冰里 within the ice all winter
现在开始开花 begin to bloom.
这片倒置的海草地现在通过浮游生物移植 This upside-down meadow is now cropped by plankton.
对于一个小骷髅虾 For a little skeleton shrimp
生活在“高耸”的海带森林的底部， living at the bottom of a towering forest of kelp,
获得食物的最佳方式...... the best way to get a share of the food...
..是爬 ..is to climb.
如果你只有两厘米长... If you're only two centimetres long...
..这就像缩放摩天大楼 ..this is like scaling a skyscraper.
然而，它并不孤单 And yet it's not alone.
数百只同类的虾 Hundreds of fellow shrimps
正尝试相同的攀爬 are attempting the same ascent.
一个新妈妈 A new mother
把她的孩子停在半路上 has parked her brood halfway up.
而且她不会让步 And she's not about to give way.
这是一个坚定的过客 This one is a determined commuter.
但是母亲有保护孩子的原始驱动力 But the mother's drive to protect her young
现在正在造成交通堵塞 is now causing a traffic jam.
最后... At last...
许多虾已经到达了这个水下森林的最顶层分支 many have made it to the topmost branches of this underwater forest.
这是非常值得的 And it's been well worth the effort.
奖赏... The prize...
是浮游生物盛宴... is a plankton feast...
..从上面雨点般下来 ..raining down from above.
到仲夏，北极水域充满着食物 By midsummer, Arctic waters are filled with food...
..使它们成为所有海洋中最富有的之一... ..making them into one of the richest of all oceans...
..喂养数十亿个微观嘴巴 ..feeding billions of microscopic mouths
也喂养着... as well as...
..地球上最大的嘴巴 ..the biggest mouth on the planet.
北极露脊鲸 （弓头鲸 ） The bowhead whale.
它四米长的鲸须板 Its four-metre-long baleen plates
使其每天能够筛选出 enable it to sieve out
多达六吨浮游生物 up to six tonnes of plankton a day.
它迅速成长为一个 18 米、100 吨重的巨物 And it grows swiftly into an 18-metre, 100-tonne giant.
在夏天，露脊鲸吃得很舒坦 In summer, the bowheads are so well fed
它们前往一年一度的聚会 they head for an annual get-together.
经过一年的耗损， After a year of wear and tear,
它们的皮肤需要修复 their skin needs reconditioning.
这是一个鲸鱼健康水疗中心 This is a whale health spa.
浅滩的岩石和沙子像浮石一样使用 Rocks and sand in the shallows are used like pumice stones
用它擦去死皮和寄生虫 with which to rub off dead skin and parasites.
这样的地方会变得非常受欢迎 Such places can become very popular.
这个海湾，靠近俄罗斯海岸， This bay, off the coast of Russia,
吸引了超过 50头露脊鲸的巨大聚会 attracts an immense gathering of over 50 bowheads.
它们是所有哺乳动物中寿命最长的 They are the longest-lived of all mammals.
有些已经200岁了 Some are 200 years old
并且已经来这里几十年了 and have been coming here for many decades.
突然... Suddenly...
它们的平静被打破了 their peace is shattered.
虎鲸从南方来了…… Killer whales have arrived from the south...
..九米长， ..nine metres long,
重九吨…… weighing nine tonnes...
..并以其非凡的智慧而闻名 ..and renowned for their exceptional intelligence.
这个特殊的虎鲸群专门用于狩猎 This particular pack specialises in hunting
露脊鲸 bowhead whales.
露脊鲸退入浅水区…… The bowheads retreat into the shallows...
..这会限制虎鲸发起的攻击 ..where it will be harder for killer whales to launch an attack.
但虎鲸的游泳 But the killers can swim
比露脊鲸快得多 much faster than the bowheads.
露脊鲸群试图缩小队伍 The group tries to close ranks.
但虎鲸试图将它们分开 But the killers attempt to separate them.
虎鲸寻找单个露脊鲸显示出的 They look for individual signs
虚弱信号 of weakness.
在浅滩，露脊鲸...... In the shallows, the bowheads lash out...
..用它们七米宽的尾巴猛烈还击 ..with their seven-metre-wide tails.
但局面混乱， But in the confusion,
有些鲸搁浅 some run aground.
其它鲸试图到达更深的水域 Others try to reach deeper water.
这个只有成年鲸一半大小的年轻鲸鱼， This youngster, half the size of an adult,
非常脆弱 is extremely vulnerable.
虎鲸们 The killer whales
轮流撞向它的一侧... take turns to ram into its sides...
..裂化它的肋骨，让它呼吸困难 ..cracking its ribs so that it struggles to breathe.
然后它们把年轻的鲸推翻，直到最后…… Then they push the youngster down until, finally...
..它淹死了 ..it drowns.
战斗结束 The battle is over.
前后持续了一个小时 It lasted an hour.
然而现在虎鲸只吃掉猎物的一部分…… Yet now the killer whales eat only one part of their prey...
..年轻鲸柔软而肥腻的舌头 ..the young bowhead's soft, fatty tongue.
今天，越来越多的露脊鲸 Today, more and more bowheads
正在成为虎鲸的猎物 are falling prey to killer whales
随着气候变暖 as the warming climate
能够作为保护屏障的海冰 causes the protective barrier of sea ice
每年过早地融化 to melt earlier each year.
到仲夏，数以百万计的海鸟迁徙， By midsummer, millions of migratory sea birds,
飞越几千里到达这里， having flown thousands of miles to get here,
在北极丰富的水域中觅食 are feeding in the Arctic's rich waters.
甚至超过一百万 Over a million
凤头海雀，不比海雀大， crested auklets, no bigger than puffins,
现在降落在阿拉斯加的圣劳伦斯岛 now descend on Alaska's Saint Lawrence Island
准备繁殖 and are preparing to breed.
为了赢得配偶，雄性必须尝试 To win a mate, a male must try
从鸟群中脱颖而出 to stand out from the crowd.
面试已经在进行中 And auditions are already under way.
不同寻常的是，雄鸟和雌鸟看起来非常相似， Males and females, unusually, look very similar,
每个都装饰有猫王般的徽章 each adorned with an Elvis-like crest.
但主要的是鸟冠的大小 But it's the size of the crest that matters.
而这个雄鸟的头饰似乎是 And this male's headgear seems to be
不足够大 no more than adequate.
在地面上的位置也很重要 A position on the ground is also important.
一个大雄鸟想要这个特殊的栖息地 One large male wants this particular perch.
占领栖息地后，它开始唱歌 And having got it, he breaks into song.
雄鸟从脖子后面，释放出一种强烈的橘子气味 He now releases a potent tangerine scent from the back of his neck.
一群粉丝们疯狂了 And a mob of fans go wild.
不过，这个雄鸟 This male, however,
似乎没有什么可提供的 seems to have nothing to offer.
但是一群追星族 But a gaggle of groupies
可能带来危险的干扰 can be a dangerous distraction.
一只北极狐 An Arctic fox.
它发现了一个鸟蛋 It's found an egg.
随着舞台的清空， With the stage cleared,
最高的栖息地 the highest perch
已空置 has become vacant.
这是一个闪耀的时刻 This is a moment to shine.
它的表演不会被忽视 His display doesn't go unnoticed.
它的橘子香水吸引了一只仰慕者 And his tangerine perfume attracts an admirer.
而且不止一只 And not just one.
现在反要雌性来打动它了 Now it's down to the females to impress him.
在小海雀社会中，两性 In auklet society, both sexes
在选择伴侣时都有发言权 have a say when it comes to choosing a mate.
在盛夏，一天24小时的阳光照射下， At the height of summer, with 24 hours of sunlight a day,
超过一半的海冰融化了 over half the sea ice melts away.
斯瓦尔巴群岛的海滩 The beaches of Svalbard
提供安全的地方，举出其中的 provide safe places to haul out for one of
一位北极的特殊居民 the Arctic's special residents.
海象 Walruses.
它们一次觅食贝类长达 17 小时 They forage for shellfish for up to 17 hours at a stretch.
现在... Now...
..该休息了 ..it's time for a rest.
每头成年雄性体重超过一吨 Each adult male weighs more than a tonne.
然后在沙滩上翻滚…… And heaving oneself over the sand...
..没有水的浮力 ..without the support of water
移动很难 is very hard work.
这个雄性有点特别 This male has a particular
想到达日光浴的... sunbathing spot in mind...
..50 头的聚集地中间 ..right in the middle of the 50-strong huddle.
刺戳有助于分开象群 A prod helps in parting the crowd.
快进去了 Almost in.
终于，它可以安定下来打个盹了…… At last, he can settle down for a snooze...
..挤压来自四面八方 ..swaddled on all sides
靠着邻居的身体 by the bodies of his neighbours.
但这不是一个安静的地方 But it's not a peaceful spot.
当有一个烦躁的同床的人时，睡眠并不容易 Sleep isn't easy when a fidgety bedfellow
解决身上的瘙痒时 decides that he has an itch
需要抓挠 that needs scratching.
这是蜕皮的时候， This is the time to moult,
去除一个人的旧皮及其所有寄生虫 to get rid of one's old fur with all its parasites
并露出下面健康的新外皮 and expose the healthy new coat beneath.
这些天，斯瓦尔巴群岛的夏季气温 These days, Svalbard's summer temperatures
可以飙升到 22 摄氏度 can soar to 22 degrees Celsius.
高温使血液靠近皮肤而泛红 Flushing red by bringing blood close to the skin
这能够帮助它们保持凉爽 helps them to keep cool.
但有时过热是不可避免的…… But some overheating is unavoidable...
..特别是对于一个大雄性 ..especially for a big male.
适可而止 Enough is enough.
从这里起来... Getting up here...
是一个艰难的过程 was a slog.
但是这个雄性找到了一种更好的方法 But this male has found a better way of getting down.
让重力发挥作用 Let gravity do the work.
现在，这很酷！ Now, that is cool!
啊！ Ahhh!
每头海象都这样做， 省时省力 Everyone is doing it. It saves both time and energy.
但海象需要它们能找到的所有技巧 But walruses will need all the tricks they can find.
北极正在变暖， The Arctic is warming,
而这些爱冷的动物正面临着 and these cold-loving animals are facing
一个岌岌可危的未来 a precarious future.
几千年来，北冰洋一直在冬天结冰 For millennia, the Arctic Ocean has frozen over in the winter
然后逐渐融化 and then gradually melted
在整个春季和夏季期间 throughout the spring and summer.
但在过去的 40 年里， But in the last 40 years,
夏季海冰的范围减少了 50% the extent of the summer sea ice has declined by 50%.
有人预测它最早将在 2035 年全部消失 Some predict that it will be ice-free as early as 2035.
这种深刻的变化... This profound change...
..已经产生巨大的影响 ..is already having an impact
北冰洋高度单一化的野生动物 on the Arctic Ocean's highly specialised wildlife.
由于夏季可用来捕猎海豹的海冰较少， With less summer sea ice from which to hunt seals,
一些北极熊现在游走 400 英里…… some polar bears are now travelling up to 400 miles...
连续游泳长达十天 swimming continuously for up to ten days
寻找陆地 in search of land.
俄罗斯北极附近的弗兰格尔岛... Wrangel Island, off Arctic Russia...
..唯一的陆地近 100 英里 ..the only land for almost 100 miles.
每年夏天，越来越多的北极熊来到这里 Each summer, more and more polar bears come ashore here.
这位新来的妈妈 This newly arrived mother
需要为她的家人寻找食物...... needs to find food for her family...
..但知道不能接近其它成年熊 ..but knows not to approach other adult bears.
一只成年的公熊 A full-grown male
可以杀死和吃掉幼崽 can kill and eat a cub
如果其它食物供不应求，也会这样做 and will do so if other food is in short supply.
这个岛上有1000多只熊 There are over 1,000 bears on this one island.
这是北极熊在这个星球上最集中的地方 It's the greatest concentration of polar bears on the planet.
但是在这些偏远的海岸上有食物 But there is food to be had on these remote shores.
海象群... A walrus colony...
..2,000头之多 ..2,000 strong.
海象们惊慌失措 The walruses panic.
并且有海象伤亡 And there are casualties.
战斗爆发 Fights break out.
这不是一个年轻家庭来的地方 This is no place for a young family.
妈妈把她的幼崽叫走 The mother calls her cubs away.
它们必须另找别处 They must search elsewhere.
对于成长中的幼崽来说，草是一顿糟糕的食物 Grass is a poor meal for a growing cub.
夏天的饥饿是一个真正的威胁 And starvation in summer is a real threat.
但是这个吃食的机会... But this opportunity to feed...
..她不能忽视的 ..is one she cannot afford to ignore.
该冒险了 It's time to gamble.
幼崽跟着她 Her cubs follow her.
她敦促它们留下来 She urges them to stay back.
公熊是她的两倍 The males are twice her size.
但是，全神贯注于吃食， But, preoccupied with feeding,
它们容忍她的存在 they tolerate her presence.
然而，她的幼崽的求救信号…… The distress calls of her cubs, however...
..引起不必要的注意 ..attract unwelcome attention.
它们的母亲冲上去用她的身体保护它们 Their mother rushes to shield them with her body.
但她似乎在保护家人-- But she seems torn between guarding her family
--和吃食之间左右为难 and feeding herself.
自己留下的幼崽 Cubs left by themselves
很容易成为饥饿的公熊的猎物 are easy prey for a hungry male bear.
但现在她的母性本能爆发了 But now her maternal instincts take over.
面对母亲的愤怒... Faced with a mother's fury...
占主导地位的公熊退缩了 the dominant male backs down.
在奋力打斗之后... Having fought her way in...
..幼崽几周来第一次可以吃食了 ..her cubs can now feed for the first time in weeks.
北极熊曾经是 Polar bears were once
海冰上的顶端猎人 the supreme hunters on the sea ice.
现在，每年夏天，越来越多的北极熊 Now, each summer, more and more of them
不得不来到陆地上寻找食物 have to come to land in search of food.
北极熊能否存活到下个世纪 Whether the ice bear survives into the next century
将取决于它们所依赖的海冰会发生什么 depends on what happens to the sea ice on which they rely.
与北冰洋所有非凡的野生动物一样， As with all of the Arctic Ocean's remarkable wildlife,
这就是，未来几年气候如何变化 it's how the climate changes over the coming years
这将决定它们的未来 that will determine their future.
冰冷世界之外
如今，在变幻莫测的北极， In today's unpredictable and changing Arctic,
拍摄其野生动物，是一项不断增加的挑战…… filming its wildlife is an ever-increasing challenge...
..没有比试图捕捉短暂的时间更重要的了 ..none more so than trying to capture the brief time
母竖琴海豹努力 that a mother harp seal spends
使幼崽适应海上生活 preparing her pup for life at sea.
为了找到海豹的产仔地， To find the seal's pupping grounds,
摄制组已经航行到北极的偏远地区 the crew have sailed to a remote area of the Arctic
格陵兰岛东海岸 off the east coast of Greenland.
但在这里，它们很快发现 But here, they quickly discover
它通常是坚固的海冰平台 that its usually solid platform of sea ice
已经分解成数千个浮体 has broken up into thousands of floes.
即便是老船长，对于现在的景象，也很惊讶 It's a surprising sight even for veteran captain
比约内·克文莫 Bjorne Kvernmo.
海洋曾经远远覆盖着冰层，离海岸线达100~200英里
好像有些事，一直快速发生着
海冰如此破碎， And with the sea ice so fractured,
没有任何野生动物的迹象 there's no sign of any wildlife.
我们已经在海上航行了一个多星期了 We've been at sea for well over a week now.
我们还没有拍到任何东西 We still haven't filmed a thing.
海豹妈妈和幼崽在一起只有 12 天，这是一场比赛 With mother and pup together for just 12 days, it's a race
寻找密集的浮冰 to find the dense pack ice
有母海豹在其上繁殖 on which the breeding seals give birth.
团队沿着格陵兰海岸继续前进 100 英里， The team head a further 100 miles up the Greenland coast,
去一个没有摄制组 to an area no film crew
曾经尝试进入的地区 has ventured into before.
他们的冒险得到了回报 Their gamble pays off.
我们的第一个竖琴海豹，宝贝！ Our first harp seal, baby!
通过更小、更灵活的小船， From the smaller, more manoeuvrable tender,
摄影师杰米麦克弗森 cameraman Jamie McPherson
希望记录宝贵的 hopes to record the precious time
海豹妈妈和幼崽在冰上一起度过的时间 mother and pup spend together on the ice.
我一直在拍摄 I've been filming
可能是世界上最可爱的动物之一 probably one of the cutest animals in the world.
还在哺乳期， And there was suckling,
这真的很酷，因为它真的很有趣， which is really cool, because it's really funny,
因为宝宝从一个乳头到另一个乳头 because the baby goes from one nipple to the other nipple
并且只是前后移动 and just goes backwards and forwards.
这是我见过的最甜蜜的事情之一！ That's one of the sweetest things I've ever seen!
太可爱了！ Utterly adorable!
妈妈现在叫它下水， With mum now calling it into the water,
这只幼崽可能已经准备好第一次游泳了 this pup may be ready for its very first swim.
这是对水下摄影师的提示 It's the cue for underwater cameraman
休·米勒 Hugh Miller.
我们将尝试不同的东西 We're going to try something different
并且实际上与海豹一起进入水中 and actually get into the water with the seals.
我们在这里绝对是新的领域 We're definitely in new territory here.
为了拍摄这难得的水下时刻， To film this rare moment underwater,
Hugh需要靠得更近一些 Hugh will need to get a lot closer,
但不能打扰他们 without disturbing them.
在零下两摄氏度的北极水域， But with Arctic waters at minus two degrees Celsius,
即使穿着保护性保暖干衣， even with a protective thermal dry suit,
Hugh 只有一个小时，在冒着体温过低的风险之前 Hugh only has an hour before he risks developing hypothermia.
现在主要是等待幼崽尝试 It's now a matter of waiting for the pup to take the plunge.
伙伴们现在已经等了大约... The guys have now been in for about...
..20分钟 ..20 minutes.
我可以向你保证，他们很冷 I can guarantee you they'll be freezing cold.
Hugh的体温已经低到危险的地步 Hugh's body temperature is getting dangerously low.
条件真的... Conditions have been...
真的很难 really hard.
只是冷... The cold just...
这是非常非常困难的！ It's been very, very difficult!
还有不到一周的时间 With less than a week to go
在这位母亲可能永远离开她的幼崽之前， before this mother is likely to leave her pup forever,
杰米继续捕捉他们的亲密互动...... Jamie continues to capture their intimate interactions...
..而Hugh还没有拍摄一个镜头 ..while is yet to film a single shot.
事情变得更糟， To make matters worse,
气温降至-- temperatures fall to
零下30摄氏度 minus 30 degrees centigrade.
而随着风向的变化， And as the wind direction changes,
漂浮冰块被迫靠得更近 the floes are forced closer together.
浮冰刚刚从我们周围进来 Pack ice has just come in from all around us.
它可以挤翻船只， It could flip the boat,
这将导致拍摄的结束 and that would be the end of the shoot.
被冰块包围 Hemmed in by blocks
重达几吨的小船 weighing several tonnes, the small skiffs
有被压碎的危险 are at risk of getting crushed.
他们通过无线电寻求帮助 They radio for help.
但随着母船接近，她分开 But as the mother ship approaches, she shunts
更多冰，他们的方式 even more ice their way.
所以，我们的两边都有这些大冰块 So, we've got these big chunks of ice either side of us
他们必须去某个地方，所以... and they've got to go somewhere, so...
在三天后的帮助下，摄制组 With help three days away, the crew
不能有任何闪失 can't afford any mistakes.
在紧要关头，一条生命线 In the nick of time, a lifeline.
安全登船！ Safely aboard!
有点太夸张了！ That was a bit full-on!
到第二天，浮冰已经散开 By the next day, the pack ice has drifted apart.
几乎为时已晚 And not a moment too soon.
哇！ Awww!
我们刚刚看到它第一次游泳 We just saw it go for its first swim.
这是惊人的 It was amazing.
它只是海面上的拍打， 非常酷 It just sort of flops about on the surface. It was very cool.
幼崽终于下水了，Hugh抓住了机会 With the pup finally in the water, Hugh seizes his chance.
但是这只幼崽会怎样看待这个好奇的海洋生物呢？ But what will the pup make of this curious sea creature?
这只幼崽在玩、玩这个相机 This pup is playing with - playing with! - the camera.
我可以从这里看到Hugh的微笑 I can see Hugh's smile from here.
哦，可爱。 哇！ Oh, lovely. Wow!
那很棒！ That was great!
是的，我们看到了。 那很棒！ Yeah, we saw. That was great!
太好了 So nice.
正当Hugh得到他的奖赏， Just as Hugh gets his reward,
北极的情况变得更糟 the Arctic conditions take a turn for the worse.
我们得到了一些惊人的东西， We've been getting some amazing stuff,
但是现在起风了，所以我们正试图离开 but now the wind's picked up, so we're trying to get out.
随着风暴的酝酿， With a storm brewing,
连母船在浮冰中都不安全 not even the mother ship is safe among the ice floes.
摄制组别无选择，只能留下海豹 The crew have no choice but to leave the seals behind.
它会在暴风雨中滚落吗？ It would roll in on a storm?
在狂风之下，它们会滚入水中
他们会淹死吗？ And they drown?
会的，幼崽们还没有准备好在海里生存
看到是很可怕的
今天，北极海冰的减少 Today, the combination of reduced Arctic sea ice
再加大风暴的组合 and heavy storms
导致这样的悲剧越来越多 is leading to more and more tragedies like this.
除非这种趋势逆转， Unless this trend is reversed,
北极许多独特野生动物的未来 the future for much of the Arctic's unique wildlife
悬而未决... hangs in the balance.
下一集... Next time...
..我们探索不可预知的世界 ..we explore the unpredictable world
冰冻的山峰…… of frozen peaks...
..发现令人惊讶的动物 ..to discover the surprising animals
..那活着生命... ..that live life...
..在边缘 ..on the edge.
..点击开放大学的链接 校对chenym ..and follow the links to The Open University.