The Anunnakis are not the Nephilim, I believe the Nephilim were produced by the Anunnakis women being taken and mated with the Draconians line. They did a lot of that back then, steal the women. The line of Adam was the line of the Anunnakis. The Old Testament is about the generations of Adam, the Anunnaki. Cain was not Adam´s son, he came from the Draconians most likely. You have to keep in mind the war in the heavens (other planets) was going on way longer before these Extraterrestrials came to our planet. So once on earth the war continues even to this day. The missing link the scientist keep looking for is that of our ET ancient astronaunt ancestors. They look like us, we are made in their image and likeness.