Some anthropologists found a fossilized 40,000-year-old pinkie finger in a cave in Siberia. Other scientists in Germany were able to isolate DNA in the finger, and the woman who used the finger is not the same species of human being as us. She also wasn't a Neandertal, another species of human that was living about that time. More tests may determine from which branch of the human family tree she comes, but in the meantime the people who've spent money on von Däniken's book Chariots of the Gods? or saw the documentary film may figure they already know.
(I don't know what marketing person decided to get Rod Serling to narrate the American cut of that film, which lays out von Däniken's theory that a number of ancient civilizations are the result of spacefaring alien influences, but that person may be a genius).