Aliens

Since the Universe seems to be a really big place, I believe that it would be a little arrogant to come to think that Earth would be the only place where life developed - so there must be some form of life somewhere else, how intelligent, that's another question. Human life, as we know it, could only be a possibility.

No i dont.

yes I don't see why not if we can exist on a planet then why couldn't they...