保护区内有一群野牛。

There is a herd of bison in the reserve.

北美野牛是美国西部的象征。

The bison is a symbol of the American West.

野牛在大草原上自由地漫游。

The bison roamed freely across the prairie.

北美野牛在平原上自由地漫游。

The bison roamed freely across the plains.

这个公园是大量北美野牛的家园。

The park is home to a large bison population.

野牛通常生活在草原和森林地区。

Bison usually live in prairies and forest areas.

Catalo（家牛与野牛杂交生下的杂种牛）具有牛和美洲野牛的特征。

A catalo has characteristics of both cattle and bison.

我们在国家公园里看到了几只野牛。

We saw a few bison in the national park.

野牛是北美洲最大的陆地动物之一。

Bison are one of the largest land animals in North America.

保护工作帮助增加了北美野牛的数量。

Conservation efforts have helped increase the bison numbers.