Given such apparent inter-breeding, the question of when the two groups first had sex exercises a sort of fascination. We can see this in this Guardian headline:
Skull discovery suggests location where humans first had sex with Neanderthals.
In March 2010, scientists announced the discovery of a finger bone fragment of a juvenile female who lived about 41,000 years ago, found in the remote Denisova Cave in the Altai Mountains in Siberia, a cave that has also been inhabited by Neanderthals and modern humans.
I had planned to bring up a post last night on the Finnish school system for the Monday Forum but events intervened. Now it seems that the Neanderthal theme has generated its own comments not connected with the post, so go for it in whatever direction you like!