Open to debate. I'm not an Alien Amphibian. But that's only because I said 'no ta'. It's a little like the Masonic Lodge. Only they don't use silly hand shakes. The onus is on intergalactic mobility, the size of your flying machine and whether you can do Black Holes. I'm sticking with Lily Pads ... though generally it's more to do with a fear of flying than alien shenanigans. Besides, I'm wary of Black Holes. I never was one for poking my mush into anything dark and dingy. Black holes are BIG, dark and dingy.
And we have aliens among us, did you not realise? One or two on hubpages - alter ego types and drama llamas. They're not all idiots and mean spirits. Some of it's alien antics - bored on our rock, idle hands and all that. Or rather - not hands. Let's call them E.T. extremities.
I hope that helps wayne. Dispels a few myths and clears up the confusion. Anything further -. you only have to ask :)