"A meteor," Julian says, which...is something of a flat explanation. "And the subsequent global climate change induced by the debris in the atmosphere, that made food sources scarce both for herbivorous and carnivorous dinosaurs."

That would be natural extinction. Of course, that's all rather theoretical since modern humans came well after dinosaurs and all known information is pieced together from the fossil record.

"I wouldn't know, I've never had it personally."