I'm kinda wavering about this question cuz u have to SEE IT TO BELIEVE IT.But i do believe the universe is infinite so there might be a 90% chance of another living creature.
Yes because on this show these guys were climbing up a mountain and they were all of a sudden gone. Then it showed a tape from a helicopter and I saw 4 aliens! Creepy!!!
http://www.businessinsider.com/nasa-just-discovered-an-earth-like-planet-2015-7
If there's another form of life on another planet, they would call US aliens XD