That is what happens to humans who where taken underground at the time of the great flood in Noah’s day and have lived there ever since as slave to the fallen. Lose skin pigment, eyes grow large over thousands of years due to very little light in subterrainian bases and tunnels that the Fallen had built. Slender with large head to accomidate the very large eyes and small statue due to poor diet. This is why they come to the surface in what we call UFO’s to collect DNA for prolonging their existance. They are total subterrInian dwellers from the days of Noah. The Fallen also built the Megaliths that were carves with such precision we can’t even do it today.