Wild horses first evolved here and became dominant grazers.

野马首先在这里代代繁衍，并主宰了这里的草地。

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

但在这些食草动物被喂食名为3-nitrooxypropanol的抗嗝化合物后，甲烷的排放量正在减少。

Smaller grazers are still found here, too.

这里也能找到小型食草动物。

They are grazers and live in flocks.

它们是草食动物，结群而居。

These grazers find sustainment ingresses others have abandoned.

这些羚羊发现了一些别人剩下的食物。

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, 食草动物都在前进。

The pronghorn lived alongside other grazers still around today, including bison.

叉角羚曾经与像今日仍旧存活的野牛那样的其他食草动物共伴而生。

This chemical restricts blood flow to the grazer's extremities, which can lead to the loss of limbs.

这种化学物质会限制食草动物的血液流向四肢，进而引发肢体损伤。

They managed to survive the drought, eventually expanding in number to replace the horse as dominant grazer.

他们从干旱存活了下来，并最终在数量上超过了马，成为了最大的食草群体。

And grasslands are made by grazers.

草原是由放牧者制造的。