The quagga, though so plainly barred like a zebra over the body, is without bars on the legs; but Dr. Gray has figured one specimen with very distinct zebra-like bars on the hocks.

斑驴虽然像斑马一样明显地在身体有纹， 但腿没有纹；但是格雷博士发现了一个本， 其飞节有非常明显的斑马状纹。

Humans have also inadvertently introduced more than 100 non-native and invasive species into the lakes, such as zebra and quagga mussels and sea lampreys that have decimated some indigenous fish populations.

不经意间向五大湖引入了100多种非本土和入侵物种，如斑马贻贝、石蛾和海七鳃鳗， 这些物种已导致某些本地鱼数量锐减。