We are in the midst of a mass extinction.

我们正处在大灭绝之中。

Presto! The Permian mass extinction is explained.

就这样！这就是二叠纪物种大灭绝的解释。

We are in the beginning of a mass extinction.

我们正处在大灭绝的伊始。

The mass extinction happened over about one million years.

集群绝灭发生在大约一百万年的时间里。

The causes of mass extinction events are unsolved mysteries.

大灭绝事件的原因是未解之谜。

How could we survive a sixth mass extinction?

我们怎样在第六次生物大灭绝生存下来呢？

The world is in the midst of a mass extinction.

世界正处于大灭绝之中。

Now researchers say it's the fastest mass extinction known.

现今研究人员们称这是迄今为止发生最快的灭绝事件。

Not enough to cause mass extinction, but still

因火山爆发导致气候变迁， 或是被直径1公里的小行星砸中。

Curious about the coolest animals that existed during these mass extinctions?

想知道在这些大规模灭绝中幸存的是哪些最酷的动物吗?

And mammals took over after the dinosaur mass extinction event 66 million years ago.

哺乳动物在6600万年前恐龙大灭绝事件后取代了恐龙。

But mass extinctions are not just a thing of the distant past.

然而大规模的生物灭绝并非只是遥远的过去。

What's happening in the corporate world is corporations are facing a mass extinction event.

而企业世界将遭遇的就是大批倒闭的情况。

Of course, a mass extinction on Earth could happen much sooner than that.

当然，这场地球上的大灭绝也许会来的更快。

For many years, scientists were baffled by this mass extinction.

很多年来，科学家们为这次大灭绝而困惑。

Having persisted through multiple mass extinction events, hagfish have just about seen it all.

在经历了多次大规模灭绝事件后，盲鳗已经见识过一切。

For various reasons the planet is currently under going a sixth mass extinction event.

由于多方面的原因，地球正在经历第六次大灭绝。

The only way you get a global mass extinction like this is an atmospheric effect.

只有大气效应才能导致这种全球性大规模灭绝事件。"

The ones that survived the mass extinction of the dinosaurs were no bigger than ducks.

在恐龙大灭绝中幸存下来的鸟类还没有鸭子大。

Mass extinction events have played an important part in the evolution of life.

大灭绝事件在生命进化中起着重要的作用。