搜索结果: 1-1 共查到“地质学 sloth”相关记录1条 . 查询时间(0.186 秒)
![](http://www.firstlight.cn/upload/imgfile/201910/28/2019102816437885.jpg)
Sloths, which once roamed the Americas, ranged from tiny, cat-sized animals that lived in trees to massive ground sloths that may have weighed up to six tons. The only species we know today are two-to...