Back in 1996 researchers started an experiment called Pleistocene Park.

早在1996年，研究人员就开始了名为“更新世公园”的实验。

Their new home is Pleistocene Park, where a process called rewilding.

它们的新家园是更新世公园，这里正在进行一项名为野放计划的项目。

Except, of course, that they never made it out of the Pleistocene.

当然，不同之处是他们未活过更新世。

We're coming to the end of the Pleistocene, the end of the Ice Age.

我们来到更新世的末期，是冰期尽头。

Capable of thriving in an ecosystem such as the grasslands being restored at Pleistocene Park.

这些亚洲象能够在更新世公园恢复的草原等生态系统中繁衍生息。

Megalodon disappeared entirely from the fossil record, just as the Pliocene epoch gave way to the Pleistocene.

巨齿鲨在地球的历史中彻底消失了，就像地质时代从上新世过渡到更新世那样。

Back in 1996 researchers started an experiment called Pleistocene Park.

早在 1996 年，研究人员就开始了一项名为更新世公园的实验。

During the Pleistocene, the waters grew colder, and the new and improved productivity at the poles meant diatoms bounced back.

在更新世期间，水域变得更冷，两极新改善的环境意味着硅藻得以恢复。

So let’s look at the Pleistocene Epoch — the most recent glacial period.

那么让我们来看看更新世时期——最近的冰川期。

There's the Pleistocene, an icy epoch that saw the evolution of modern humans.

更新世是一个冰冷的时代，见证了现代人类的进化。