english: 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.
non_english: Zem však zažila viacero veľkých vymieraní. Preskočme do doby pred 56 miliónmi rokov – a ako asi budete vedieť, vtedy do Zeme narazil asteroid;