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, 食都在前进。

Dugongs are the largest herbivores in the sea.

儒艮是海洋里最大的食。

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

你猜对了，狒狒是食，他们吃青。

The cause of this crisis? Herbivores, mostly deer.

这场危机的原因是什么？食，主要是鹿。

Where plants abound, herbivores will not be far behind.

植比比皆是的地方食的出现也不会落后。

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

而有的地方，就有食，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，这些对人类生活的反应是相似的: 它们失去了反捕食者的特征。 这种模式在食和群居种中尤为明显。

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

虽然它们可能是食，但最好还是离远一点。

Predator numbers cannot increase until herbivores grow.

在食生长之前，捕食者的数量不会增加。

Thorns help protect the plant from plant-eating animals.

刺有助于保护植免受食的伤害。

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食。

Wait a minute. I thought rhinos were vegetarians.

等一下，你们犀牛应该是食吧？

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

但在这些食被喂食名为3-nitrooxypropanol的抗嗝化后，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.

雕齿兽是一种食，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、食肉和大型食自由活。

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

回到过去，有数百万的大型食在这片土地上漫游。

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

例如，食的大便中含有三分之一的食营养。

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

“就为了这个吗？食害怕食肉，然后你就掌权了？”

Rhinos are herbivores, and eat mostly leaves.

犀牛是食，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，因为巨型食都会如此。