I have to say Zarak/Gaeta stuff is really making me go
a bit. It's like the cylons are more human than the humans.
I am really thinking the whole thing started on earth and we seeded them at this point. The Cylons are actually Cybergenetic Clones...i.e. Cylons for short. We implated implated them with an A.I. chip to survive the trip. We did the clones to take care of the embryos we also put on the space suttle, and the humans over the course of time had evolved, thus making Cylons and them the very least different as possible. The clones would always be unable to breed...well because for some reason I think cloned animals are infertile. The evolution would happen in both Cylons and Humans....
And what will really put a twist in their panties is when they find a frozen human on earth who explains this and then tells them they all evolved from lower primates.