With winter now in full retreat, the change in seasons unveils Scandinavia's epic diversity.
冬季已经完全退去，季节的变换展现出斯堪的纳维亚形形色色的物种。
Five countries make up this remarkable region, spanning much of the northern hemisphere.
这个神奇的地方包含五个国家贯穿大部北半球。
The frozen north lies within the Arctic circle.
冰封的北方在北极圈之内。
But further south, the warmer weather has transformed the landscape,
但是往南，温暖的天气呈现了另一番景象。
bringing in an explosion of new growth.
一瞬间，大量的植物开始生长。
But it won't last long.
但繁盛景象持续不了多久。

The race is on to reproduce and grow before the next freeze begins.
繁殖和生长的竞赛已经开始，要在下个冰冻季节来临前完成。
Animals and plants must make the most of the rich short seasons.
动植物都必须充分利用这富庶而短暂的季节。