- The receding ice reveals an immense flat plain the size of Australia.
眼前是一片无边无际的平原 面积相当于一个澳大利亚 - This is the Arctic tundra.
这便是北极的苔原 - It's a desolate, silent wilderness.
虽然此时是万籁俱寂,一片荒凉的景象 - But it's about to change.
但这一切即将发生变化 - Snow geese.
雪雁 - They winter along the Gulf of Mexico, and in spring they fly the entire length of North America to reach the Arctic tundra.
它们在墨西哥湾越冬 等到春天便一路飞过北美洲 来到这里的北极苔原 - Five million birds make this journey every year.
每年有五百万只雪雁都是这样迁徙
But it's about to change. 但这一切即将发生变化
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