Notice how they appear almost Reptilian ? And resemble Moloch ? That was their curse from God. As was the snake in Eden to crawl on its belly from hence forward. They that did not have children with women of men were taken along with their slaves underground in tunnel systems they built to avoid the waters of the flood of Noahs day. And after many thousands of years living underground are only slightly human and have lost their skin pigment, grew large eyes due to the darkness and are fraile and thin from poor butrion on molds and fungi. The became known as the Grays with Ufologist and have to collect DNA from humans to survive or they will not be able to reproduce and are still slave to the Fallen.