Same chances as them not looking like us for all we know the could have dropped us of here to populate and we are just a new growing civilization of their kind and all the alien encounters we have heard about in the past could be them just checking how we are doing and leading us the right way
Very little unless we were somehow evolved from the same original organism, or if were once one race and long ago we got separated. But I wouldn’t think that it would be likely that a being from as close as another solar system that was created completely independent of the species on this planet would look anything like us. Unless god has a real good sense of humor, we do have the platypus.
Chances are Great.
Might be like virus or more suffocated than us ,
One word Paladeans, research or billy meier or alex collier.
That would depend on the planet they evolved upon, and the requirement for multiple extinction events and several ice ages. In a huge universe, could happen :)
If aliens do ( I'm a believer that they exist,) exist and they would look like humans, we would be having a problem because they could be blending in.
Well to me when I think of aliens I think of a really ugly human being that is green and muschy...
It steadily reaches an infinitesimal decimal the more you think of the possible paths life on Earth could've taken, much less another world.