the little grey dudes are ancestors of humans... big tall ones with elongated skulls and very pale skin... they haven't been around much since after they took Enoch up and there is so many stories

some of them very old too

the irish called them Tuatha de Danaan or Aes Dana, the egyptians and south americans called them "the gods" and yes the ones that showed them cacao, and there is ample archaeological evidence that for some reason ancient aztecs and others were trying to make their ruling class babies have elongated heads with these elaborate devices...

the genetics died out because they stopped breeding with humans because these creatures, called "nephilim" in ancient judaic texts, were corrupt and violent, some of them very tall stature too, the story about Goliath is related to this, late stage before the genetic features were too diluted to be found

they also had longer life spans too

anyway, y'all probably think i'm crazy but it do what it be