Humans weren't at risk of dying out during the PETM, because we didn't exist.

在古新世–始新世极热事件时人类并没有濒临灭绝危险，为我们还不存在。

The preceding Palaeocene epoch was also brought to an end, the rocks suggest, by a sudden release of methane.

岩石层研究表明甲烷突然释放导致之前古新世时期结束。

The latest discovery, he said, helps show a clear connection between the two areas during the Paleocene period.

他说，最新发现有助于显示这两个区在古新世时期明显联系。

Sometime during the late Paleocene, Titanoboa  disappeared from the lowland tropics of northern Colombia.

在古新世晚期某个时候，泰坦巨蟒从哥伦比亚北热带区消失。

So, by the middle of the Paleocene Epoch, animal life was on the rebound.

，到古新世中期， 动物生命开始反弹。

The Paleocene-Eocene Thermal Maximum, 55 million years ago, was so warm, crocodiles swam the waters of the Arctic Circle.

5500 万年前古新世-始新世极热期非常温暖，以至于鳄鱼在北极圈水域中游来游去。

But it would've looked smol next to some of its Paleocene relatives from New Zealand.

但如果与来自新西兰一些古新世近亲相比，它会显得微不足道。

From there, they made it to Antarctica by the late Paleocene, between 59 million and 56 million years ago.

从那里，他们在 5900 万到 5600 万年前古新世晚期到达南极洲。

These animals flourished in the superheated  jungles of the mid to late Paleocene, but none more than the colossal serpent, Titanoboa.

这些动物在古新世中后期过热丛林中繁衍生息，但其中最重要莫过于巨蛇泰坦巨蟒。

This period  of warming, known as the Paleocene-Eocene Thermal Maximum or PETM, was likely caused by  a combination of natural factors.

这一变暖时期被称为古新世-始新世极热事件或PETM，可能是由多种自然素造成。

Had Titanoboa survived beyond the PETM, it would have faced more challenges in the millions of  years between then and now.

如果泰坦巨蟒能够在古新世始世以来时期幸存下来，那么从那时到现在数百万年里， 它将会面临更多挑战。

Planocraniidae first showed up in the Paleocene Epoch about 61 million years ago, starting with a species from China known as Planocrania hengdongensis .

Planocraniidae 最早出现在大约 6100 万年前古新世时期，最早出现是来自中国一种名为 Planocrania hengdongensis 物种。

And it couldn't fly, but it used those short wings to propel itself into the coastal waters of the Paleocene Epoch.

而且它不会飞，但是它用那短小翅膀将自己推进到古新世近海海域。

So I found this down by the Bow River here in Calgary, and this is part of some kind of sycamore plant from the Paleocene.

我在卡尔加里弓河边发现这个，这是古新世某种梧桐植物一分。

From there, true penguins probably evolved in what's now New Zealand in the early Paleocene Epoch, around 61 million years ago, with Waimanu and its relatives.

从那里开始，真正企鹅可能在大约 6100 万年前古新世早期与怀马努及其亲戚一起在现在新西兰进化。

The world's biggest snake thrived for a couple million years in the Paleocene Epoch, its giant lifestyle made possible by the extreme climate at the time.

世界上最大蛇在古新世时期繁衍生息几百万年，当时极端气候使其成为可能。

During the Late Paleocene and early Eocene, the global average temperature rapidly increased  by about 5 degrees Celsius, an event known as the Paleocene-Eocene Thermal Maximum or PETM.

在古新世晚期和始新世早期，全球平均气温迅速上升约 5 摄氏度，这一事件被称为古新世-始新世极热期 (PETM)。

Titanoboa lived just a few million years before global temperatures spiked even higher, in an event known as the Paleocene-Eocene Thermal Maximum, which we've talked about before.

泰坦巨蟒在全球温度飙升至更高温度之前仅存在几百万年，这一事件被称为古新世-始新世极热事件，我们之前已经讨论过。

Back at the start of the Eocene Epoch, the world was in the clutches of the Paleocene-Eocene Thermal Maximum, and warm, damp forests covered the land from pole to pole.

早在始新世初期，世界就处于古新世-始新世极热期控制之下，温暖潮湿森林覆盖南北两极土。

The Paleocene Eocene Thermal Maximum is one of the most radical climate events ever unearthed, and the mass extinction that followed it was triggered — at least in part — by an injection of greenhouse gases into the air.

古新世-始新世极热事件是众多未被发掘极端天气事件之一，后面发生大规模灭绝原至少有分是为温室气体排放进大气。