and has taken them three months. 耗时多达三个多月 Exhausted and starving, they touch down inside the Arctic Circle, 虽然早己精疲力竭 饥肠辘辘 但它们终于返回了北极圈 back at their traditional breeding grounds at last. 返回了它们阔别已久的繁殖地 Snow geese pair for life. 雪雁一生只忠于一个配偶 As...
Exhausted and starving, they touch down inside the Arctic Circle, 虽然早己精疲力竭 饥肠辘辘 但它们终于返回了北极圈 back at their traditional breeding grounds at last. 返回了它们阔别已久的繁殖地 Snow geese pair for life. 雪雁一生只忠于一个配偶 As soon as couples arrive, they must stake a...
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 thi...
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 The...
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 Their marathon mig...
Five million birds make this journey every year. 每年有五百万只雪雁都是这样迁徙 Their marathon migration is almost 3,000 miles long 这场马拉松式的迁徙长达三千英里 and has taken them three months. 耗时多达三个多月 Exhausted and starving, they touch down inside the Arctic Circle,...
Green returns to the Arctic. 北极又披上了绿色的外衣 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'...
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...
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 Am...
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...