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Even at the height of summer, less than three per cent of Antarctica is free of ice,
即使是盛夏，南極洲也只有不到3％的地方?jīng)]有被冰封
and nearly all of that exposed rock is found in one place, the Antarctic Peninsula.
幾乎所有的裸巖都集中在同一個(gè)地方，即南極半島。
Its long arm extends further north than the rest of the continent, so spring arrives here first.
這里與南極洲的其它地方相比更靠近北邊，所以春天先來到這里。
The thaw unlocks sheltered bays that provide refuge from the relentless battering of the Southern Ocean.
解凍后出現(xiàn)一些風(fēng)平浪靜的海灣，可以躲避南極洋無情的風(fēng)浪。
In the depths, something stirs. Humpback whales.
水里有動(dòng)靜。座頭鯨！
They have travelled over 5,000 miles to reach these waters.
它們經(jīng)過5000英里的漫長旅程終于來到了這片水域
The whales are harvesting krill,
這些鯨現(xiàn)在正美美地享受著磷蝦大餐
shrimp-like creatures that begin to swarm here as soon as the ice retreats.
冰層一融化各種各樣的蝦就會(huì)聚集在這里
Diving into the heart of the swarm, teams of whales spiral round each other in close coordination.
潛入到蝦群中后，座頭鯨會(huì)共同配合，緊密協(xié)作。
Now they turn, blasting air from their blowholes, and ascend towards their prey.
現(xiàn)在座頭鯨轉(zhuǎn)身，利用呼吸孔吐氣，噴向獵物
The krill becomes concentrated as the spiralling net of bubbles draws inwards.
螺旋型的氣泡網(wǎng)逐漸收緊，把磷蝦聚在一起。
