[00:00:40]The greatest seasonal change on our planet is now under way.

地球上最壮阔的季节转换正在上演

[00:07:52]Antarctica is still locked in ice,

南极洲依旧是冰天雪地

[00:15:32]and surrounded by a frozen ocean.

周围是冻结的海洋

[00:19:20]Nonetheless, there are signs of spring.

然而 春天已经露出萌芽

[00:21:48]Adelie penguins are arriving. Just the males.

阿德利企鹅来了 当然只有雄性

[00:33:56]They've spent five months at sea,

它们在海上生活了五个月

[00:35:58]where it's warmer than it is on land,

那里比地面温暖

[00:38:08]and now they're in a hurry,

现在它们匆忙赶来

[00:39:55]for spring will be short.

因为春天十分短暂

[00:43:30]They have travelled 6,000 miles across the ocean

自从去年离开后

[00:52:16]since leaving their colony last year

它们已跨洋旅行了6000英里

[00:54:07]and now, they're returning to breed.

现在回到这里 繁衍生息

[00:57:33]They cannot lay their eggs on ice for they would freeze.

它们不能在冰上产蛋 那样蛋会冻住

[01:00:51]So they have to come here,

所以来到这里

[01:02:56]where there is bare rock.

这里有光洁的石头

[01:06:26]Over the coming months,

在接下来的几个月里

[01:10:10]the few parts of Antarctica that are ice-free

南极洲为数不多的无冰区

[01:13:03]will be the stage on which five million Adelies

将会成为五百万阿德利企鹅

[01:16:30]will build their nests.

筑巢的营地

[01:20:51]To construct one, they need pebbles.

它们需要用卵石来筑巢

[01:27:08]And without a good-looking nest,

如果筑的巢不够美观

[01:29:24]a male will be unable to attract a female,

雄企鹅就无法在雌企鹅最终到来时

[01:32:28]when they at last arrive.

吸引她们的注意

[01:35:09]An impressive property demonstrates your worth as a mate.

别致的巢穴是可靠伴侣的象征

[01:42:43]It takes stones of all shapes and sizes to build a decent nest

像样的巢需要各种形状和大小的石头

[01:46:52]and finding ones that are just right is not easy.

而合适的石头非常难找

[01:55:37]So, some penguins turn to a life of crime.

所以一些企鹅走上不法之路