Did Humans Breed With Neanderthals? A New Study Says No
http://www.rttnews.com/1947576/did-humans-breed-with-neanderthals-a-new-study-says-no.aspx
If you dont like that url just Google the search terms “Study says Neanderthals never bred with humans”
What these new studies propose is an alternative hypothesis to more recent human/Neanderthal interbreeding.
They suggest that instead of interbreeding circa 30,000 years ago, humans and Neanderthals share common ancestors in North Africa around 500,000 years ago.
I think that's a fine explanation, and may well be true, but so far have seen no evidence to prove for certain which competing hypothesis deserves the moniker of "theory".