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Listen to native speakers pronounce “252” in real conversational contexts with synchronized timestamps and subtitles.
So the other ones are 200 million years-- 201 million years ago, the end Triassic mass extinction, about 80% of species went out.252 million years ago was the end Permian, which is the biggest mass extinction of all time.So interestingly, the end Cretaceous, we think of this big horrible thing.