Found : Nephilim, Annunaki and Neanderthals

One theory is that nephilim were actually surviving Neanderthals, or a Homo sapiens-Neanderthal hybrid. It is believed by such people that modern man shared several thousand years of history with Neanderthals, and also that the Middle-Eastern region was home to some of the last surviving pockets of Homo sapiens neandertalensis or H. neandertalensis. Therefore, it is conceivable that a Folk Memory of these creatures survived by way of mythology- but not necessarily in the way that it is imagined. In addition, it appears that the very last Neanderthals adopted some of the technological and cultural innovations of their contemporaries. So, the theory goes, surviving Neanderthals or hybrids might have been very large, powerful men, possessing the intellect and societal characteristics of our species, explaining their identification as: "mightiest ones" and "men of renown," which could be a great exaggeration based on some level of prowess.