Maybe Denisovan was on a vacation.
What happens in cave, stays in cave.
A Denisovan and a Neanderthal walk into a cave.
That's not too much indeed. Where's the drama, the inconvenience (if there was any, of course) of inter-species sex. I mean, two really different humans, in Siberia, in the middle of a cave. And all we can know they went in there?
Maybe going out clubbing meant something different back then.
Yeah,bet they had fun clubbing each other.