On the warmer plains and valleys that surround the plateau, grazers are on the move.

在高原周围温暖的平原和山谷, 动都在前进。

Dugongs are the largest herbivores in the sea.

儒艮是海洋里最大的动。

And you're right, they are herbivores, they eat grass.

你猜对了，狒狒是动，他们吃青。

The cause of this crisis? Herbivores, mostly deer.

这场危机的原因是什？动，主要是鹿。

Where plants abound, herbivores will not be far behind.

植比比皆是的地方动的出现也不会落后。

And where there's grass, there are herbivores, also known as plant-eaters.

而有的地方，就有动，也就是吃植的。

Turns out that regardless of evolutionary lineage, the animals react in a similar way to life among humans: they lose their antipredator traits. That pattern is especially pronounced for herbivores and for social species.

事实证明，不管进化谱系如何，这些动对人类生活的应是相似的: 它们失去了者的特征。 这种模式在动和群居种中尤为明显。

Because while they maybe vegetarians, it's still wise to " hoof" it .

虽然它们可能是动，但最好还是离远一点。

Predator numbers cannot increase until herbivores grow.

在动生长之前，者的数量不会增加。

Thorns help protect the plant from plant-eating animals.

刺有助于保护植免受动的伤害。

They increased their levels of an enzyme called lipoxygenase, which is known to deter herbivores.

这些番茄的脂肪氧化酶水平会上升，这种酶已知被用来检测动。

Wait a minute. I thought rhinos were vegetarians.

等一下，你们犀牛应该是动吧？

But those methane emissions might get cut—by feeding the grazers something called 3-nitro oxypropanol.

但在这些动被喂名为3-nitrooxypropanol的抗嗝化合后，甲烷的排放量正在减少。

This lumbering vegetarian is no threat to the llamas, but it does arouse their curiosity.

雕齿兽是一种动，它对于美洲驼没有威胁，但是却激起了它们的好奇心。

Spread across five square kilometers, the Lincoln Park Zoo boasts a spacious pool with sea lions, big for the Lions, for predators and giant spaces for herbivores.

方圆5平方公里的林肯公园有一个宽敞的池塘，里面有海狮，完全容得下狮子、肉动和大型动自由活动。

So back the time, there were millions of big herbivores roaming the landscape.

回到过去，有数百万的大型动在这片土地上漫游。

Herbivores, for example, leave a third of food nutrients in their poop.

例如，动的大便中含有三分之一的营养。

" So that's it? Prey fears predator, and you stay in power? " asked Judy.

“就为了这个吗？动害怕肉动，然后你就掌权了？”

Rhinos are herbivores, and eat mostly leaves.

犀牛是动，大多吃叶子。

Sauropods were probably burping and farting almost continuously, because that's what big plant eaters do.

波塞东龙无时无刻不在打嗝，放屁，因为巨型动都会如此。