[00:00:01]Southern humpbacks, 南方的座头鲸 [00:03:32]after travelling 4,000 miles from the equator, 从赤道出发 长途跋涉四千英里 [00:09:23]are finally arriving in Antarctica. 最终到达南极洲 [00:17:17]Humans have long felt the lure of this mysterious world, 长久以来 这个神秘世界引诱着世人 [00:20:37]yet it was only a hundred years ago 然而直到一百年前 [00:23:34]that the first explorers walked inland 才有第一批探险家涉足此地 [00:26:31]and were confronted by the highest, 挑战地球上的至高点 [00:28:34]driest and coldest territory on Earth. 这片最干燥 最寒冷的土地 [00:37:02]Every year, the continent is transformed 每年 当大陆周围的浮冰开始融化 [00:40:11]as the sea ice that surrounds it begins to disappear. 大陆的形态也随之改变 [00:45:49]This melt halves the size of Antarctica. 这种融化使南极洲缩小了一半 [00:56:24]It's the most spectacular seasonal change 这是我们地球上 [01:01:12]occurring anywhere on our planet. 最壮观的季节转换 [01:07:46]The remnants of the sea ice 沐浴着阳光的海豹 [01:09:21]are occupied by sunbathing seals 慵懒的躺在浮冰上 [01:11:54]that have been here all winter. 它们已在这度过了整个冬季 [01:17:01]But new arrivals are following the retreating ice edge 但随着冰雪融去 有新客到访 [01:20:07]and they have come here to hunt. 它们来此捕食

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