冰冻星球（2011）

冰冻星球
第二集
在极地地区 太阳已经半年没有出现了
The sun is absent for up to half the year in the polar regions.
春天来临 阳光再次普照
When it returns, at the beginning of spring,
它的温暖会改变这个冰冻的神奇世界
its warmth will transform this magical ice world.
地球上最壮阔的季节转换正在上演
The greatest seasonal change on our planet is now underway.
春 季
南极洲依旧是冰天雪地
Antarctica is still locked in ice,
周围是冻结的海洋
and surrounded by a frozen ocean.
然而 春天已经露出萌芽
Nonetheless, there are signs of spring.
阿德利企鹅来了 当然只有雄性
Adelie penguins are arriving-- just the males.
他们在海上生活了五个月
They've spent five months at sea,
那里比地面温暖
where it's warmer than it is on land
现在他们匆忙赶来 因为春天十分短暂
and now they're in a hurry, for spring will be short.
自从去年离开后
They have travelled 6,000 miles across the ocean
他们已跨洋旅行了6000英里
since leaving their colony last year,
现在回到这里 繁衍生息
and now they're returning to breed.
他们不能在冰上产蛋 因为那样会冻僵
They cannot lay their eggs on ice, for they would freeze,
所以来到这里
so they have to come here,
这里有光洁的石头
where there is bare rock.
在接下来的几个月里
Over the coming months,
南极洲为数不多的无冰区
the few parts of Antarctica that are ice-free
将会成为五百万阿德利企鹅
will be the stage on which five million Adelies
筑巢的营地
will build their nests.
它们需要用卵石来筑巢
To construct one, they need pebbles,
如果筑的巢不够美观
and without a good-looking nest,
雄企鹅就无法在雌企鹅最终到来时
a male will be unable to attract a female,
吸引她们的注意
when they at last arrive.
别致的巢穴是可靠伴侣的象征
An impressive property demonstrates your worth as a mate.
像样的巢需要各种形状和大小的石头
It takes stones of all shapes and sizes to build a decent nest,
而合适的石头非常难找
and finding ones that are just right is not easy.
所以一些企鹅走上不法之路
So some penguins turn to a life of crime.
被偷的那只企鹅似乎并没察觉到
The one who has been robbed seems unaware
小偷就在身旁 等待着大捞一笔
that the thief is just over his shoulder, and looking for more.
小偷的筑巢行动进行得十分顺利
The thief's nest is coming along nicely,
大概是因为他一直
probably because he keeps
紧紧看护自己的巢穴以防窃贼光顾
a particularly sharp lookout for robbers.
毕竟他自己就是个贼人
after all, it takes one to know one.
天气依旧寒冷 但早春的太阳
It's still cold, but the early season sun
让气温上升了几度
does lift the temperature by a few degrees.
然而 这样却会招致
That, however, can have unexpected,
意想不到的 甚至是危险的后果
even dangerous consequences.
海洋升温的速度比陆地快
The sea is heating faster than the land,
使得冷空气从大♥陆♥中♥央♥
pulling cold air from the middle of the continent
向海岸移♥动♥
towards the coast.
由此产生的下降风比任何飓风都要猛烈
These katabatic winds are stronger than any hurricane.
是地球上最冷也最猛烈的风
They are the coldest and the most ferocious on the planet.
暴风突袭这片土地的新访客
The storms catch many new arrivals by surprise,
所以这里的春季
and are the reason that spring here is,
是死亡率最高的季节
in fact, the deadliest season.
在这里 先驱们要冒极大的危险
Here, early birds take a great risk.
有时候 整个企鹅群都会迷路
Some years, entire colonies are lost,
被埋在雪下
buried beneath the snow.
在暴风中幸存下来的企鹅
The survivors of this storm
希望当雌企鹅最终出现时
must hope that the females prove to be worth the wait
他们的等待没有白费
when they finally decide to turn up.
北极的春天来了
Spring in the north of our planet.
销声匿迹了六个月的太阳
The sun, after an absence of six months,
终于突破了地平线
breaks the horizon for the first time.
这头母北极熊从雪下的窝中探出头来
A female polar bear emerges from her den beneath the snow.
在黑暗中待久了
The sun must be a welcome relief
她觉得阳光温暖而舒适
after so long in the darkness.
她的窝建在一片高坡上
Her den is on a high slope,
那些饥肠辘辘
well away from hungry male bears
想打幼崽主意的公熊无法靠近
who would kill her cubs,
同时也离海面够近 让她能找到食物
but close enough to the sea ice where she can find food
喂养新家庭成员
for her extraordinary new family...
三只小熊
...three young cubs.
如果能将它们抚养到独♥立♥生活
If she can raise them all to independence,
就已经十分难得了
it'll be a rare achievement.
有一头小熊体重过轻
One of the cubs is underweight,
能活过最冷的这几周就很幸运了
and will be fortunate to survive these early weeks.
如果他们一家抵达海冰区域
If the family reaches the sea ice,
母熊就能抓到海豹
where the female can catch seals,
她的奶水也会得以富足
her milk will be enriched,
小熊就能很快茁壮成长
and the smaller cub will quickly gain size and strength.
然而 海冰区域非常危险
The sea ice, though, is a dangerous place.
公北极熊整个冬天都待在冰封的海面上
The male polar bear has been out on the frozen ocean all winter.
这个季节食物非常匮乏
Times have been lean,
几头小熊仔绝对是上好的零食
and a bear cub would certainly make a welcome snack.
但是 他主要还得靠海豹充饥
However, the mainstay of his diet is seals,
而现在正是海豹生育的季节
and now is the time when they have their pups.
冻结的洋面上 遍布着因潮汐而形成的
The surface of the frozen sea is marked with pressure ridges,
冰脊和裂纹
and cracks created by the fluctuating tides.
这些都是猎食海豹的好去处
Both are good places to look for seals.
他发现了一处藏在冰下的海豹窝
He has detected a seal den beneath the ice.
现在 他必须借助异常灵敏的嗅觉
Now he must pin-point it,
来进行精确定位
using only his extraordinary sense of smell.
他小心翼翼 以免打草惊蛇
By treading lightly, he can avoid scaring his prey.
他得打穿一米厚的雪才够得到海豹窝
He will need to punch through a metre of snow to reach the den,
如果他定位不够精准
and if his aim is not exactly on target,
海豹就会逃走
the seal will certainly escape.
事实上 被围剿的海豹早在几个钟头前
In fact, the ringed seal abandoned her den
就弃窝而逃
just a few hours ago
她的幼崽也已经爬到冰面上
and her pup has climbed up onto the surface.
虽然在上面更容易暴露目标
It's more exposed up here,
但也更容易发现熊的影踪
but it's easier to see an approaching bear.
当母亲离开去捕鱼时
The pup is well camouflaged,
她把幼崽隐蔽得很好 很难被发现
difficult to see when its mother has left it to go fishing.
但北极熊还是能闻到海豹的气味
But he can still smell it.
北极熊的捕食行动十有八♥九♥都以失败告终
Nine out of ten polar bear hunts end in failure.
在北极 阳光的增温效应不断加速
The sun's warming effect on the Arctic is increasing
海冰首度出现了融化的迹象
and the sea ice is showing the first signs of weakening.
在内陆地区 北部的河流仍处于冰封期
Inland, the northern rivers are still locked in ice.
冻结的瀑布如同大坝一般
The frozen waterfalls are like dams
储备着数十亿吨♥
holding back billions of tonnes of fresh water
冻结已近半年的淡水资源
that has not moved for almost six months.
如此巨大的分水岭一直静卧在那里
The vast water shed lies motionless,
但随着春天的临近 它开始骚动起来
but as spring advances, it beings to stir.
冻结的瀑布逐渐消融
The frozen waterfalls start to weaken.
上游处的压力与日俱增
Above them, the pressure is mounting.
现在 从高空俯视
Now, from high above,
可以看见大♥片♥的浮冰开始漂流
whole sections can be seen to be on the move.
瀑布一直在顽强地抵抗
The waterfalls are straining to hold back the force
这股来自上游的压力
that is building up above them.
大坝瞬间崩塌...
The dam bursts...
大河滔滔如万马奔腾
and the river is unleashed.
在融冰产生的势不可挡力量推动下
Millions of tonnes of ice grind their way downstream,
数百万吨♥浮冰以摧枯拉朽之势倾泻而下
driven by the unstoppable force of the meltwater.
岸边的山石被冲走
Boulders and trees
林木被连根拔起
are plucked from the bank side.
短短几天 北极的江河便又恢复了奔流
Within just a few days, the rivers of the north are all running.
北极的淡水再次涌流而出
The Arctic's fresh water is flowing again.
这些洪流包含了地球10%的淡水资源
These vast floods contain 10% of the world's fresh water
汇流入海时 便会加速浮冰解体
and as they enter the ocean, they accelerate the break-up.
不久之后
Soon,
相当于澳洲这么大区域的海冰
an area of sea ice the size of Australia
便从北冰洋消失不见
will vanish from the Arctic Ocean.
随着大冰原的解体 野生动物开始回归
As the huge ice-sheet breaks up, wildlife returns to the North.
北极熊妈妈成功回归海冰的边缘地带
The polar bear mother has made it to the edge of the sea-ice,
但最瘦弱的那头小北极熊则无处可寻
but the smallest cub is nowhere to be seen.
这是个悲伤的结局