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Red-billed tropicbirds rely on extreme aerial agility
紅嘴鸏仰賴極其敏捷的飛行技巧
to overcome the many challenges of their life.
克服生命中的挑戰(zhàn)
For others, survival demands endurance.
至于其他鳥類要生存 就得堅忍不屈
Every spring, red knots fly 10,000 miles
每年春天 紅腹濱鷸要飛上一萬六千公里
from their wintering grounds in Argentina
從它們在阿根廷過冬的地方
to their nesting sites in Canada.
飛往加拿大的筑巢地點
The only way they complete this marathon journey
要完成這趟馬拉松旅程
is by making a crucial fuel stop here
唯一的辦法是在美國東岸
in Delaware Bay, on the east coast of America.
德拉威灣這里 務必要停下來補給
What is most extraordinary is that
最非比尋常的是
as well as having to find their way to this one location,
除了必須設法飛到這個地點
they must also time their arrival to perfection.
抵達的時間還得算得剛剛好
They have a rendezvous with prehistoric creatures emerging from the deep
和海底冒出的史前動物會合
which have hardly changed in 250 million years.
兩億五千萬年來 這種動物幾乎沒變
