HUH, I was just going to say about increasing them alot more!! On a gigantic map i only see about 10 total??
I really dont think Neanderthals are responsible for early civ deaths. Currently they are VERY low thread low as far as I have seen. What would be useful would be AI logs from games in which people have seen early civ deaths so we can look at what killed them. Turning AI logging on (BUG screen, logging tab) to level 3 (BBAI log) and then posting (ZIPd) the BBAI.log from your logs folder should allow us to see what happened I think (if it doesn'ty quite have enough info now it's easily added)