Ancient humans were mixing it up, Tolkien's style

[Linkman226]

In other words, Africans are the only true pure-blooded humans

Not quite true. Africans also bred with other hominid populations, just not the Neanderthals.

 

[Shacassanach]

And Europeans are partially Neanderthals, who were being oppressed, enslaved and colonized by Africans FIRST.

The first published Neanderthal1 and Denisovan genome sequences revolutionized the study of ancient human history, not least because they showed that these groups bred with anatomically modern humans, contributing to the genetic diversity of many people alive today.

Is this uniformly so, or just in certain geographical regions? I've read previously that the genomic evidence was that Neanderthals were just out-bred by ancient humans. They were forced into limited pockets.

It's one thing to say there is some evidence of inter-breeding to some limit (e.g. 5% of all humans have some Neanderthal or something like that, with the interbreeding occurring in limited regions) but it is something else to say that they 100% inter-bred into human lineages.

 

[Yeekim]

And here is your possibly giant Homo - Meganthropus:

http://en.wikipedia.org/wiki/Meganthropus

...and your hobbits:
http://en.wikipedia.org/wiki/Homo_floresiensis