[blam]

The whole 'out of Africa' theory is about to get a very serious challenge in the next few years. (It's already begun)

We found a whole new species of human in Siberia last year, we have the DNA.

[GourmetDan]

"We found a whole new species of human in Siberia last year, we have the DNA."

'Species' is an extremely flexible term that can be essentially meaningless. All they really have is "a sequence which is similar in some ways to humans, but still quite distinct".

It is that leap from "a sequence which is similar in some ways to humans, but still quite distinct" to "a new species" that is the problem. Most people can't see that.