less than three per cent of Antarctica is free of ice, 南极洲也只有不到3％的地方没有被冰封

49. The skuas can survive further south than any other predator
    与其他猛禽相比 贼鸥的厉害在于它能在地球的最南端生存
50. by exploiting the petrels' desperate need for bare rock.
    它们知道利用海燕必定寻找裸岩筑巢的弱点
51. Even at the height of summer,
    在南极洲 即使是盛夏
52. less than three per cent of Antarctica is free of ice,
    南极洲也只有不到3％的地方没有被冰封
53. and nearly all of that exposed rock is found in one place,
    几乎所有的裸岩都集中在同一个地方
54. the Antarctic Peninsula.
    即南极半岛
55. Its long arm extends further north than the rest of the continent, so spring arrives here first.
    这里与南极洲的其它地方相比更靠近北边, 所以春天先来到这里

来自《行星地球 第一季 第六集 Planet Earth S01E06 冰雪世界》第 52 行