Pg. Some scenes may be too intense for younger viewers.

家长陪同级。某些场景对少儿来讲过于强烈。

Just a little note before we get started this video, like almost every video on my channel is PG rated.

在我们开始这个视频之前，请注意一点，我的频道里几乎所有的视频都是 PG 级别的。

These would go on to survive the K-Pg extinction event 66 million years ago.

这些将继续在 6600 万年前的 K-Pg 灭绝事件中幸存下来。

Soon after the K-Pg extinction, the climate warmed, and jungles stretched across the planet.

K-Pg 灭绝后不久，气候 变暖，丛林遍布地球。

This huge gap in the fossil record sits right around the K-Pg extinction event 66 million years ago.

化石记录中的这一巨大空白恰好位于 6600 万年前的 K-Pg 灭绝事件前后。

Technically the asteroid that triggered the K-Pg mass extinction killed by far the most birds with one stone.

从技术上讲，引发 K-Pg 大灭绝的小行星是迄今为止用一块石头杀死最多鸟类的。

This mass extinction event, known as the Cretaceous-Paleogene (K-Pg) extinction, saw the demise of about 75% of Earth's species, including all non-avian dinosaurs.

这次大规模灭绝事件被称为白垩纪-古近纪 (K-Pg) 灭绝，导致地球上约 75% 的物种灭绝，包括所有非鸟类恐龙。

Some parts  of the world were already scorching during the Late Cretaceous Period, the last great age of the  dinosaurs, but temperatures climbed even higher following a global catastrophe known as the  Cretaceous-Paleogene or K-Pg Extinction Event.

在白垩纪晚期，即恐龙的最后一个伟大时代， 世界上的一些地区已经变得炎热，但在一场被称为白垩纪-古近纪或 K-Pg 灭绝事件的全球灾难之后， 气温甚至攀升得更高。