I believe in shape shifters and agree they could be from earth. Not sure. If anyone sees a reptilian or an alien I think they will be too scared frozen stiff or running away to take a photo.
In the bible it says be wise as a serpant gentle as a dove, well the wisdom of a serpant is to hide himself, just like those corrupt judges and crooked mason? police who don't belong on the force and the pedofile priests, etc. they try to hide their corruption behind a title, a collar, a robe, a job or a front. They should all be out-ed and kicked off the force. Best to avoid evil frauds. I learned evil only destroys itself and to have no contact or fraternity with crooks aka snakes.
Biblical calibration did give us the authority to step on snakes heads with our heals and crush them underfoot. Yuck, snakes. Awhile back I had my friend run a snake over with the garden mower when the creepy snake was slithering round in the yard.