allosaurus

The result, once natural selection had done its work over the course of millions of years, was the now familiar cast of Allosaurus and Tyrannosaurus rex.

结果，历经数百万年间的自然选择，形成了我们今日熟知的异特龙和雷克斯霸王龙族群。

The Allosaurus was a meat eater.

异特龙是肉食动物。

The Allosaurus walked on two feet, but was slow. The Allosaurus could run.

异特龙是两条腿走路，但走的很慢，它也能跑。

Allosaurus was the top predatory dinosaur of the late Jurassic period in North America.

异龙是最大的掠夺性恐龙的晚侏罗纪期间在北美地区。

Photo Gallery: Jurassic Period An Allosaurus tramps through a Mesozoic-era forest in this artist´s depiction.

侏罗纪时代图片集。一只古生异龙践踏通过一个中生代时期的森林在这方面艺术家的写照。