extinction

The Permian-Triassic mass extinction wiped out 90% of marine species.

二叠纪-三叠纪的大规模灭绝消灭了90%的海洋物种。

Many species are now on the brink of extinction due to habitat loss.

由于栖息地丧失，许多物种现在濒临灭绝。

Without conservation efforts, the tigers face extinction in the wild.

如果没有保护措施，老虎在野外将面临灭绝。

Climate change threatens extinction for many Arctic animals.

气候变化威胁着许多北极动物的灭绝。

Human activity is accelerating species extinction at an alarming rate.

人类活动正在以惊人的速度加速物种灭绝。

The asteroid impact caused a global extinction event 66 million years ago.

6600万年前的小行星撞击导致了一次全球性的灭绝事件。

Many species are on the brink of extinction due to human activities.

由于人类活动，许多物种濒临灭绝。

Without immediate action, these animals will face extinction within a decade.

如果不立即采取行动，这些动物将在十年内面临灭绝。

Overhunting drove the passenger pigeon to extinction in the early 20th century.

过度捕猎导致旅鸽在20世纪初灭绝。

Many species face extinction due to human activities.

许多物种因人类活动面临灭绝。

The extinction of the dinosaurs was a major event in Earth's history.

恐龙灭绝是地球历史上的重大事件。