But sloths, especially three-toed sloths, rely on leaves almost exclusively.

但树懒，特别是三趾树懒，几乎只吃叶子。

Then, there are the two-toed sloths.

另外还有两趾树懒。

Sloths have a freakishly low metabolism.

树懒的新陈代谢非常慢。

But sloths are massively misunderstood.

但是树懒被深深地误解了。

When sloths do move, it's not very fast.

当树懒动起来时，真的很慢。

He was inspired by fossils of armadillos and sloths.

犰狳和树懒化石让他获得了灵感。

And sloths can do almost anything in this inverted position.

树懒在倒挂时几乎可以做任何事情。

But sloths aren't lazy. They're just really, really slow.

树懒其实并不懒，它只是动作太迟钝罢了。

I've spent many happy hours mesmerized by moving sloths.

在观察树懒移动时，我度过了很多快乐时光。

Three-toed sloths have the slowest metabolism of any mammal.

三趾树懒的新陈代谢率是所有哺乳动物中最慢的。