When it comes to evading predators squirrels are honor students.

在躲避掠食者方面，松鼠优等生。

Because Darwinian calculus tells you, the predator, to eliminate your competition, other predators, whenever you can.

因为达尔文的数据表，掠食者应尽可能地铲除其他的掠食者。

No natural predators means you're king of the animals.

没有掠食者就万兽之王。

And fighting back against those predators I mentioned.

并且反击我提到的那些掠食者。

Having fed the predators, the cicadas leave one final gift for the forest itself.

喂饱了掠食者后，蝉给森林留下了最后的礼物。

It's one of the largest predators in the sea.

它海中最大的掠食者之一。

And then, there's the apex predator — the king of the river.

还有顶级掠食者——河流的王者。

But jumping spiders are a lot more like cat-like predators.

但跳蛛更像猫一样的掠食者。

The polar bear is the world's largest land predator.

北极熊上最大的陆生掠食者。

These predators were more advanced than their earlier cousins.

这些掠食者比它们早期的亲戚更加先进。

In order to avoid predators, many insects are nocturnal.

为了躲避掠食者，很多昆虫夜行的。

There are no natural predators for a wolf.

对狼而言 上没有天生的掠食者。

These teeth belonged to a lethal predator.

这些牙齿属于一种致命掠食者。

The cheetah is mindful of other predators that are direct threats to her cubs.

猎豹则对威胁其幼崽的掠食者十分警觉。

They are the young stage of dragonflies predators that feed on worms and tadpoles.

它们蜻蜓的幼虫，以蠕虫和蝌蚪为食的掠食者。

Did you know that they're the apex predators, by the way?

顺便问一句，知道它们顶级掠食者吗？

Apex predators are not hunted and eaten by any animals.

顶级掠食者不会被其他动物猎捕或吃掉的。

These predators have to rely on fast-acting venom to lay their victims low.

这些掠食者要靠快速起效的毒液来放倒猎物。

Such a predator would have been unable to take on an adult ornithopod.

这样的掠食者本不能捕食一头成年鸟脚亚目食草恐龙。

Relocating is never safe when there are predators around.

有掠食者在周围时，更换洞穴永远危险的。