Fading light is a signal for the cat to make its move.

光线渐渐暗下来，猞猁开始行了。

And these things form 80% of a lynx's diet.

猞猁的猎物中80%都是它们。

Lynx are one of the few animals who don't lose the trail under snow.

猞猁是少数不会在雪地里跟丢猎物的物之一。

In eastern Europe, you may see the rare Euroasian Lynx and the European bison.

在东欧，能会看到罕见的欧亚猞猁和欧洲野牛。

You could spend years looking for a lynx and never see more than a footprint.

能会花几年找一只猞猁，却只能找到它的脚印。

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。

But, as you can see, they don't make it easy for that lynx.

但是能看到，对猞猁来说要抓到它们不容易。

They've discovered that he is just one of hundreds of lynx living here.

他们已经发现，它仅仅是生在这里的数百只猞猁中的一个。

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。

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。

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，它们生在北半球的乔林中。

And this particular lynx is well-known to chief scientist Jen Vashon.

这只特别的猞猁对首席科学家简·瓦申来说却是再熟悉不过了的。

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。

This time, in our seasonal forests, why does this lynx need a caterpillar?

这一集，在季节性森林里为什么这猞猁会需要毛毛虫？

And that's why the lynx needs the caterpillar.

这就是为什么猞猁会需要毛毛虫。

With those distinctly pointed ears, it can only be a Canadian lynx.

从它明显很尖的耳朵来看，只能是一只加拿大猞猁。

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物伊比利亚猞猁的繁育及救助中心。

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

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

It must be the right height to eat, and provide enough cover to hide from all those lynx.

它必须有合适的高度，正好能吃得到同时又能有足够的掩蔽，以躲避所有的猞猁。

Safe inside her den, a lynx cub.

一个猞猁幼崽正躲在它的安全小窝里。