Yes there is, your ignorance does not change fact. The majority of the human race carries between 2% and 4% Neanderthal DNA<quoted text> Neanderthal my foot. No concrete evidence confirming that guess(es).
You can not rule out that possibility of a first man and woman.
The human female genetic line traced in mitochondrial dna is around 200,000 years old. The human male genetic line traced through the Y chromosome is around 120,000 years old.
Are you saying that the first man was in to some serious necrophilia?
Remember, this is DNA we are talking about, it is not a babble story, it is very accurate. The validity is good enough to prove murder and in some countries commit a person to execution.