Why does the lynx need the caterpillar?

为什么猞猁会需要毛毛虫？

The clue is how they affect the lynx's prey on the forest floor.

线索就在于毛毛虫是如何影响森林地面上那些猞猁的猎物的。

Extremely rare and secretive, the lynx inhabits the high forests all across the northern hemisphere.

欧亚猞猁极其稀有而且很神秘，它们生活在北半球的乔林中。

There is also a breeding and rescue center there for the endangered Iberian lynx, an endangered kind of wild cat.

那里还有一个濒危野生猫科动物伊比利亚猞猁的繁育及救助中心。

Safe inside her den, a lynx cub.

一个猞猁幼崽正躲在它的安全小窝里。

Lab tests showed conclusive results: the Canada lynx was indeed present in the area.

加拿大猞猁的确曾在这片区域内活动。

First, the major predators of deer wolves, cougar, and lynx have been greatly reduced in numbers.

首先，鹿群天敌数量不断减少，它们是狼、美洲豹以及猞猁。

And of course what's good for the hares is also good for the lynx.

当然，对野兔有利也就意味着对猞猁有利。

In the land of the lynx, something extraordinary is happening to the forest.

在猞猁生活的地区，一些非同寻常的事情发生在森林里。

While metabarcoding can detect elusive animals like the Canada lynx, it can also help scientists identify invasive species.

DNA 复合条形码不仅可以帮助科学家监测像加拿大猞猁这样行踪不定的动物，也帮助科学家识别那些入侵的物种。