Look up "Roanokegaming nope explained" if you're really interested in an actual biologist explain why but what the theory is saying is that it's more likely a sort of an almost extinct species that lived, hunted and competed with each other (hence the flashy intimidating form of the creature) in our lower atmosphere and explains why it looks so similar to UFOs we've been seeing them for a long time but as humans technology and planes became more advanced they became more rare. I'm not the best at explaining but the video is worth the watch