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。

And its ancestors went head to head with some of the greatest  hunters of the pleistocene.

它的祖先与更新世的一些最伟大的猎手并肩作战。

For example, from about 1.8 million years ago to around 11 thousand years ago was the Pleistocene epic.

例如，从大约 180 万年前到大约 11000 年前是更新世史诗。

But, if you lo ok in the fossil record, during the Pleistocene, pronghorn may well have needed that speed.

但是，如果你仔细观察化石记录，就会发现在更新世期间， 叉角羚很可能需要这样的速度。

And back in the Pleistocene, the California condor had a whole lot of North America to purify.

回到更新世，加利福尼亚秃鹰有很多北美需要净化。

Nikita and his father Sergey Asimov hope their plans for Pleistocene Park might be able to turn back the clock on climate change.

尼基塔和他的父亲谢尔盖·阿西莫夫希望他们的更新世公园计划能够让气候变化倒流。

The California condor first appeared back in the Pleistocene, when the world was a very different place.

加利福尼亚秃鹰最早出现在更新世，当时世界是一个非常不同的地方。

Well, in the Late Pleistocene Epoch, the climate was changing rapidly and becoming more variable.

好吧，在晚更新世时期，气候正在迅速变化并且变得更加多变。

You, my friend, would be living in the Pleistocene Epoch, which spanned from 2.6 millions years ago to 11,700 years ago.

我的朋友， 你将生活在更新世，从 260 万年前到 11,700 年前。

There are lots of examples of anachronisms around today, and many of them date back to the Pleistocene.

今天有很多不合时宜的例子，其中许多可以追溯到更新世。

As there are fewer animals, at least 100 times lower than during the Pleistocene era, useful grasslands have been replaced with mossy forests and wetlands.

由于动物数量减少，至少比更新世时期减少了 100 倍，有用的草原被长满苔藓的森林和湿地所取代。