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

为了找到答案，他们加利福尼亚州和纽约州的过冬地点捕获了18只乌鸦。

Unlike honeybees, native bees in the U.S. don't overwinter as a colony.

与蜜蜂不同的是，美国本土的蜜蜂不会作为一个群体冬。

“So, if you're overwintering there, how do you deal with the cold? ”

“如果你那里过冬，要如何对抗严寒呢？”

Jandt can recall one memorable zombie fire, which reignited after overwintering in May, 1996.

Jandt 能回忆起难忘的一场僵尸火灾——1996年5，野火过冬后再度燃烧起来。

And overwinter each year in the vast wetlands here.

到这里的湿地冬。

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

上世纪 80 年代，加利福尼亚过冬的蝴蝶有四百万只。

Though they're adept fliers, these birds typically overwinter in South America.

尽管它们擅长飞行，但这些鸟通常会南美洲冬。

The number of storks overwintering in Portugal has shot up from fewer than 2,000 in 1995 to 14,000 in 2014.

葡萄牙过冬的鹳数量骤增，从1995年的不到2000只，蹿升至2014年的1.4万只。

Every year, some members of the population migrate between breeding grounds and their overwintering grounds-like parking lots.

每年，乌鸦群中会有一些成员往返于繁殖地和停车场等过冬地之间。

Instead of northern surveys counting breeding adults, IUCN and others use data from the forests where monarchs overwinter in central Mexico.

IUCN和其他机构使用的是来自黑脉金斑蝶墨西哥中部冬的森林里的数据，而不是计算北方成年黑脉金斑蝶繁殖情况的调查。

This past spring, Randi Jandt and her colleagues published a paper in Nature about wildfires that overwinter in the boreal forest.

今年春天，Randi Jandt 和同事《自然》上发表了关于北方针叶林冬野火的文章。

Druckenmiller: So, if you're overwintering there, how do you deal with the cold?

德鲁肯米勒：那么，如果你那里过冬，你是如何应对寒冷的？

These days, climate change is messing with the overwintering strategies of some insects.

如今，气候变化正扰乱一些昆虫的冬策略。

Fires that overwintered started popping up again last spring, contributing to another intense fire season in Siberia this past year.

今年春天冬火灾再度现身，过去这一年给西伯利亚又增添了一个强烈的火灾季。

REPORTER: In 2015, this region of boreal forest was the scene of an overwintering fire also known as a zombie fire.

2015年，这片北方森林地区发生了一场冬大火，也被称为僵尸大火。

They can overwinter in mass and then be ready to collect pollen and nectar the next spring, as soon as plants start to bloom.

它们可以大量冬，然后明年春天植物开始开花时，就准备好收花粉和花蜜。

And it's actually not a perennial here but we can get it to overwinter, which is awesome because we get a much earlier harvest.

实际上不是这里的多年生植物，但我们可以让它冬，这很棒，因为我们可以提前收获。

Zombie fires or overwintering fires are a phenomenon that occurs when wildfires are extinguished on the surface, but continue to burn underground.

僵尸火或冬火是当野火地表熄灭但地下继续燃烧时发生的一种现象。

It stands out not only because of how much work it took to put out, but also because in 1996, this kind of fire—one that overwinters—was very rare.

那次火灾令人记忆犹新，不仅于扑灭花费的大量时间，还因为1996年这种冬野火还非常少见。

In the last two fire seasons, other parts of the world dominated by boreal forest have also seen overwintering fires and Jandt says that may be where some of her research goes next.

过去的两个火灾高发季，北方针叶林为主的其它地区已经出现了冬火灾，Jandt 说她接下来可能去研究那些地方。