Your argument above makes no sense. I have told you before that there was a first man and women....just not like the Bible says. The real first man and women lived 200,000 years ago in Africa, along with Neanderthals, who were NOT humans.<quoted text> I have told you before, you can not rule out the possibility of a first man and woman, why, because we all have parents, grand parents and the likes. So, by that you can not completely rule out the validity of the bible.
The Neanderthal DNA is different than humans and their whole body structure was different in small ways.