The issue is this, Major; you may travel back to the historical Garden of Eden & come upon the original Adam & Eve but we have no assurance that the primal human pair will bear any resemblance to present day man & woman. Willing to chance it, the Major departed. Upon his return, the Major reported sighting what he took to be the first abortion. When asked about the mother, the Time traveler went silent, then said, 'there was no father. It was a case of spontaneous parthenogenesis.' The scientists went away scratching their heads; the Major never revealing the truth that the woman who more so resembled a large ape had roughly taken to calling him "Ah-****'', the word he'd shout during his ******.