I believe that there is other living things somewhere in universe.
The known conditions for life exist in many distant planets and I'm 100% sure there are living organisms out there but I really don't know the reason for humans to evolve so quickly in a very distinctive way so I can't tell how intelligent aliens would be. Also, we evolved to breath air so there is nothing stopping aliens from having the need to "breath electricity" (i.e.) so life(Not exactly as we know it) can pop up anywhere :P