As the Eocene transitioned to the Oligocene, the climate cooled.

随着始新世过渡到渐新世，气候变冷。

But what happened to these Eocene animals?

但是这些始新世动物发生了什么？

Clearly, Antarctica’s biodiversity took a hit after the Eocene.

显然，南极洲的生物多样性 在始新世之后受到了打击。

Eocene, so, by about 40 million years ago, many of them had gone extinct.

，因此，到大约 4000 万年前， 其中许多已经灭绝。

As a result, our world is warming faster than it did back in the Eocene.

结果，我们的世界变暖的速度 比始新世早。

So given its size, it was able to support many different ecosystems in the Eocene.

所以考虑到它的大小，它能够支持 始新世许多不同的生态系统。

In the United States, Boverisuchus shows up fully-formed and ready to run in the early Eocene.

在美国，始新世早期，Boverisuchus 已经完全成形并准备好奔跑。