The picture we have of Neanderthals has just undergone a sea change thanks to the work of a New Zealand Scholar named Danny Vendramini:
Them and Us dot org
My own take on this sort of topic is a work in progress and lives at:
Bearfabrique Prehistory Page
The Neanderthal turns out to have been a bipedal and totally carnivorous ice-age ape with huge eyes for nocturnal hunting and the same 8" fur coat which every other ice age animal wore, which is why no Neanderthal needles have ever been found.