1. North America was populated by a wide variety of great beasts, like mammoth and mastodons, both elephant-like creatures with big tusks, and camels, giant sloths, the list goes on. 在北美洲生活着各种各样的巨兽，如猛犸象和乳齿象，都是长着巨大象牙的象状动物，还有骆驼和巨大的树懒，名单待续。
2. The disappearance of megafauna in America—mammoths, saber-toothed cats, giant sloths, among others—happened relatively soon after the arrival of human beings, about 13,000 years ago. 美洲巨型动物的消失——猛犸象、剑齿猫、巨型树懒等等——发生在人类出现后不久，大约在一万三千年前。
3. Sloths live in trees and move very slowly. 树獭生活在树上而且行动缓慢。
4. Among them were giant sloths the size of SUVs. 当冰盖从北美大陆上消退时，这些动物统治了整片大陆，其中甚至包括越野车大小的巨型树獭。
5. Among her favorite animals now: iguanas and sloths. 她先在最喜欢的动物里九游：鬣蜥和树懒。
