Humans are hunters, warriors. We compete for resources. Territory. Women.

Here is what happened to Neanderthalers: they were bigger, better adapted to Europe, they had bigger brains, were probably smarter.

Rhey had lived in Europe for 170.000 years before the modern humans rolling in, in waves from the middle east and Russia.

Still, only 5000 years after the "modern humans" started invading Europe, the Neanderthals were replaced.

Their last refuge was modern day Gibraltar and it was 24000 years ago.

http://www.michellhilton.com/2016/05/isto-e-o-que-aconteceu-com-os-nossos-antepassados.html

Yet, Europeans have about 4% Neanderthal DNA. pureblood Niggers have 0%.