Ever hear of the pronghorn antelope in the American West?

听说过美国西部的叉角羚吗？

The species at risk include bighorn sheep, gray wolves, pronghorn antelope and jaguars.

濒危物种包括大角羊、灰狼、叉角羚和美洲虎。

Pronghorn antelopes are unique to North America and among the toughest creatures on the plains.

叉角羚是北美独一无二的一种羚羊，也是平原上的最顽强的物种。

These pronghorn antelopes among the great survivors of the ice age reveal a lot about the distant past.

这些叉角羚也是雄奇的冰河期生还者之一，揭示着许多远古的记忆。

They go by many names, pronghorn antelope,   prongbuck, and American Antelope.

它们有很多名字，叉角羚、叉角羚和美洲羚羊。

The fastest land animal in the western hemisphere, the pronghorn antelope is built for speed with specially adapted cushions on their hooves and large lungs to help them take in extra oxygen.

作为西半球速度最快的陆地动物，叉角羚就是为速度而生，它们的蹄子为此进化出缓冲垫，肺也加大容量帮助它们吸入大量氧气。