I feel compelled to tell you guys that Homo isn't latin for human, it's Latin for "like" or "same" as opposed to hetero, meaning different, hence homozygous vs heterozygous, or the obvious example of homosexual(same sex) vs heterosexual (different sexes).
In regards to Zana, I've always had trouble with Sykes determination that she's african, or of African heritage, her line probably brought to the region as a slave, within the last 10000years but none the less 100% sapiens. Have their been ANY reports of records that mention any people or people's retaining full body covering of the or hair, accompanied by tremendous size, be they feral or otherwise?
What's the likelihood that say Zanas distant relatives escaped their enslavement, even 5K years ago, do you really think that the genes for fur would "reactivate" in so short a time? Maybe within a Lamarckian genetic reality, but we don't live there. I could see it more likely that if what Sykes reported was true and that she was fully human, that she then came from a line that never lost the fur in the first place, rather than gained it back due to exposure to the cold of the local winters. But if that were the case then wouldn't there be record or lore that speaks of a giant race of hairy beings, other than gorillas, living somewhere between Africa and that region of europe, or even much mention of hair covered humans anywhere?
As I've posted before, it's my current position that sasquatch represent the descendents of hybrid hominids that crossed the bering strait prior the Pleistocene "megafication" of many of the mammal species present at the time, thus megafauna hominds.
My hybrid theory seems further supported by the case of Zana, for regardless of her actual DNA make up, she had four children, and who knows how many possible miscarriages, and despite her tremendous size and full body covering of hair or fur, there were still at least four full blooded H.sapiens that decided "yeah, I'd hit that!" thereby lending credence to my theory of Man the Sex Monkey and how rather than by direct slaughter, H. sapiens drove the others into oblivion by integradation and a complement of dominant genes.
However a lot of what went down over the course of the Sykes report makes me question the results it resulted in, peer-reviewed or not!