We must stock up for the winter.

我们必须为过冬采办食品。

They are primeval creatures, bearded and huge, their winter fur peeling off in strips like old wallpaper.

这些古老生灵身形庞大，胡须缀面，过冬的厚毛一条条脱落，如同破旧的墙纸。

Each site provides the winter home for millions of monarchs.

每一个位置都为数百万帝王蝶提供了过冬的家园。

So in the 1980s, the overwintering butterflies here in California, there were four million counted.

上世纪 80 年代，在加利福尼亚过冬的蝴蝶有四百万。

To find out, they captured 18 crows from overwintering spots in California and New York.

为了找到答案，他们在加利福尼亚州和纽约州的过冬地点捕获了18乌鸦。

Well fall's winding down, so this is a way to gear up for winter.

因为秋天即将过去，这是在为过冬做准备。

It serves as shelter for insects over winter.

它是昆虫过冬的庇护所。

The staff who have spent the winter here give the new arrivals a warm welcome.

在这里过冬的工作员热烈欢迎新来的客。

Back in the 1980s, I had to spend the winter at the North Pole.

上世纪80年代，我不得不在北极过冬。

Most of the animals here are either hibernating or have migrated south for the winter.

这里大部分的动物不是在冬眠，就是往南方迁移过冬了。

This could be their last good feast before they head south for the winter.

这也许是它们在前往南方过冬前最后的欢宴了。

He can watch geese fly south for the winter.

他可以观看大雁飞往南方过冬。

And I can see geese fly south for the winter!

也可以观看大雁飞往南方过冬！

Then you will have to get ready for winter.

那你得为过冬做好准备。

So why don't the geese just leave their wintering grounds earlier?

那为什么这些雁不能早点离开过冬地呢？

Their bamboo-heavy diet prevents them from storing enough fat to sleep through the winter.

它们主要以竹子为食，这使得它们无法储存足够的脂肪来过冬。

They winter over in the Caribbean, Central America and South America.

它们在加勒比海、中洲和南洲过冬。

In fact, humans don't need to sleep through winter.

实际上，类不需要靠睡觉过冬。

Then they hide them away to survive winter weather, when food is hard to find.

之后会把它们储藏起来留着过冬，因为冬天很难觅食。

They stay through the winter and leave in March.

它们在这里过冬，三月份离开。