Perhaps they are demons that are appearing to have bodies. The Bible says that the devil can change himself into an angel of light.
And as far as the beings that lost their bodies in the flood. The Bible says that they were around after the flood. So somehow at least some of them have escaped. Its been a few months since I have been in Genesis Chapter 6. I probably need to re-read it.
In the final analysis its a matter of pure (and fun) speculation.
Regards...
Even some of the hard science researchers affirm that the critters seem to come from a “spiritual dimension.”
However, they really do have tangible bodies. They will be able to play the role of ‘citizens of distant orbs’ quite well.
And, interestingly, there’s often the smell of sulpher.
Yes, many nephilium/fallen angels lost their bodies in Noah’s flood. NOT ALL. Yes, those who did not lose their bodies in Noah’s flood were around afterwards causing trouble, still . . . as they are in our era.
There’s plenty of mystery and complexity in it all.
Thx for your kind post.