Does it stand to reason that the scale of intelligent life could be dramatically different on other, much larger earth like planets, or much smaller ones? Or do we have any reason to believe, based on our knowledge of physics, that there is some cosmological limit to the range of mass for complex life forms?

I wish that one day we can find a civilization out there, with intelligent life. It would be fantasitc. 

That's it. 

-Meiko