Homo Neanderthalensis/Sapiens Interbreeding Finally Confirmed

The first scenario is that Neandertals occasionally interbred with modern humans after they migrated out of Africa. The alternative scenario is that the humans who left Africa evolved from the same ancestral subpopulation that had previously given rise to the Neandertals.

Dr. Lohse has found a subtle genetic method for confirming the difference between the first and second scenarios above.

This method has positively ruled out the second scenario. It is certain now that Homo Sapiens Neanderthalensis and Homo Sapiens Sapiens interbred on occasion, and modern humans of all so-called "races" have inherited genes from these occasions.

The press release is here; I look to the geneticists among us to check out the scholarly paper (linked in the press release) and tell us all what we're looking at in terms of the details of the new method.