By Nick Redfern

Are significant numbers of humanity the product of an ancient and advanced alien civilization? Have we, across the millennia, been periodically modified and refined as a species? In short, has our genetic make-up been manipulated by otherworldly beings that view human civilization as one big lab experiment? These are controversial and thought-provoking questions. They are also questions that demand answers, answers that may very well be found by examining those people whose blood type is Rh negative