translation.en: Now, we've had several extinction events, and as we march forward -- 65 million years ago -- most of you know about it -- we had an asteroid impact.
translation.zh: 那时我们已经有几次灭绝性事件。后来—— 6千5百万年前——你们大多数人都知道—— 我们有过一次小行星的撞击。