Reptilians would only dominate using brute force if the information on alien lifeforms is to be correct, I have always considered the Greys as the dominant species as they are said to have superior intellect to many other known species including telepathy, including yours truly, so I assumed it would take more than brute force and bombs to control other species if we are talking about extremely advanced extraterrestrial species, unlike mankind's earth where all you need is the will to do what the other person will not and be in the possession of a weapon, besides I have always associated Greys with the disk shaped UFO's many people see in our skies anyway, if anybody can name the X-File episode where that couple In the car see the greys come over to check em out and then the red looking alien creature comes out of another ship, in that scene it's the greys that are the mischievous and the red reptilian looking alien is the benevolent one