And a century ago, the bison were reduced to barely 1,000.

一百年前，的数量曾锐减至不到一千。

Or capitulating to bison at the entrance to Yellowstone.

或者在黄石公园入口处投降。

The whole idea is to sort of emulate the bison in olden days.

整个想法是模仿古代的。

The park is now a protected area for bison.

该公园现在是保护区。

Most of the wild animals must be watched from a distance, especially the bison.

大部分生动物必须远距离欣赏，尤其是。

We do have live bison in San Francisco, if you haven't seen it.

我们旧金山确实有, 不过你可能没见过。

But, as her supervisor at Oxford pointed out, no one was studying bison.

但是，正如她在津大的导师所指出的那样，没有人在研究。

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

在东欧，你可能会看到罕见的欧亚猞猁和欧洲。

Right now we're working to establish a herd of genetically pure bison at the zoo.

“目前我们正致力于在动物园里培育纯种基因的群。

Thomas is involved in efforts with the zoo's current herd of bison.

托马斯参与了动物园当前的群繁育工作。

The wild horses came from Britain's Exmoor National Park, while European bison came from Poland.

这些马来自英国埃克斯穆尔国家公园，而欧洲来自波兰。

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那样的其他食草动物共伴而生。

Just as cows, sheep and bison roam in herds today, so, too, did plant-eating dinosaurs.

就像现在成群行动的、羊和那样，食草恐龙当年也如此。

As the bison quickly vanished from the landscape, cattle filled their place.

随着北美快速地从大陆上消失，家取代了他们的位置。

The bison in Yellowstone injure far more people than do the grizzly bears.

黄石公园的比灰熊伤的人要多得多。

Just like cows, sheep and bison roam in herds today, so, too, did plant-eating dinosaurs.

就像今天的奶、绵羊和成群结队地游荡一样，食草恐龙也是如此。

The bear's attention is clearly on the bison.

短面熊的注意力显然在身上。

Now 82 tribes across the U. S. have more than 20,000 bison in 65 herds.

目前全美 82 个部落 65 个牧群共有 2 万多头。

So the beaver will go the way of the bison and the American Indian.

所以海狸会走和美洲印第安人走过的路。

In summer, bison roamed freely, almost continuously cropping the abundant green grass.

夏季，美洲四处漫步享用着取之不尽的大片青草。