Re: Were Neanderthals really stupid?
Neanderthals had bigger brains, so it's quite possible that they were more intelligent. On the other hand, if they had a different way of thinking, how would you compare their intelligence? Perhaps they were better at some kinds of thinking, worse at others...
Species go extinct for all sorts of reasons. Often it's disease or climate change. In the case of Neanderthals, perhaps they couldn't cope with the global warming.