Hello @tygertyger
Nice seeing you here! Welcome
Well @theironfelix said pretty much everything there can be said
it's inevitable on his/her(?) part
the question is are they rock bound like we are or are they more advanced.
Good question. I am sure that there must be all kinds, we are talking about the vast universe, as the saying goes: in the vineyard of the Lord...
i mean look at the diversity of life on this here rock and quantify it by billions ...
Well, not far away, I know good people who I could swear they're extraterrestrials or a freak of nature. 
I'm glad you took the time to stop by 