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。

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。

Sloths live in trees and move very slowly.

树獭生活在树上而且行动缓慢。

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。

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。

What are you doing? - I'm putting sloths on the map.

你在干嘛？我让树懒…名垂千古。

He was inspired by fossils of armadillos and sloths.

犰狳和树懒化石让他获得了灵感。

Ground sloths are a diverse group of extinct sloths, in the mammalian superorder Xenarthra.

地懒是已经灭绝的树懒的一个子类，属哺乳纲贫齿目。

The department of motor vehicles in "Zootopia" is staffed by sloths, the world's slowest mammal.

在《疯狂动物城》中，机动车部门的职员是世界上最慢的哺乳动物树懒。

Mummies of pleistocene ground sloths, with original skin, hair, tendons and claws have been found.

还发现了保存原有皮肤，毛发，腱和爪的更新世时期地面树懒的木乃伊。

Some sloths appear green because they have algae growing on their fur which provides them with camouflage.

有些树懒看起来是绿色的因为它们的毛上长有藻类植物这给它们提供了伪装保护。

'I couldn't believe it when I spotted he was doing my favourite yoga pose. Sloths are supposed to be lazy.

她说，“我简直不敢相信它竟然做着我平时最喜欢的瑜伽动作。树懒不应该是很懒的么？”

In fact, sloths only move two to three meters per minute, which makes them the slowest mammals in the world.

事实上，树獭每分钟只移动二到三公尺，这让牠们成为世界上最迟缓的动物。

At Beijing Zoo, the American animal enclosure, which has several two-toed sloths, has been very popular in recent days.

在北京动物园的美国动物展区有几只二趾树懒，在最近这段日子里非常受欢迎。

They may have gone, along with mammoths, short-headed bears, ground sloths and camels, because a comet exploded over their heads.

他们可能已经同猛犸象、短头熊、地獭和骆驼一起灭绝了。因为一颗彗星就在他们头上爆炸。

It cavorted with woolly mammoths and giant sloths and other Ice Age behemoths in Europe and Asia, starting about 2.5 million years ago.

在约二百五十万年前，长毛犀与长毛象、大树懒及其他冰河巨兽活跃在欧洲和亚洲的土地上。

In the meantime, I encourage you to conduct your own research in Costa Rica, exploring those magnificent beaches or admiring those slothful sloths.

在此期间，我鼓励你们去哥斯达黎加进行自己的研究，探索那些美丽的海滩，或欣赏那些懒树懒。

Ahnost a million years ago, saber tooth tigers, giant sloths and other monsters stumbled into the pits where they were preserved forever in the sticky tar.

大约一百万年以前，长着剑齿的老虎、巨大的懒猴和其他庞然大物突然跌进坑内，它们在粘胶似的沥青里被永久保存了下来。

Before Dr. Katzourakis’s fossil hunt, scientists had never found a foamy virus infecting any sloths, or any of their relatives like armadillos and anteaters.

在Katzourakis博士前，科学家从未发现有泡沫病毒感染的树懒，或像犰狳和食蚁兽等亲缘。

Scientists have so far identified more than 700 specimens, including the skull of a prehistoric American lion and the bones of dire wolves, saber-tooth cats, ground sloths and bison.

科学家们至今已识别出了700多个样本，其中包括：一个史前美洲豹的头盖骨以及袋狼、剑齿虎、大地懒、野牛的骨骸。