Life? It would not surprise me one iota if there was life elsewhere in our solar system. Plenty of locations with all the right components.
Intelligent life? It would not surprise me one bit if there were other whole civilizations "out there". The chance of either of us seeing the other is infinitesimally small, though. The Universe is a big place, and we are but a speck in both time and space.
Little grey men space-probing our cows? Yeah.... not so much.
HA! I see what you did there. Duh, we all know they're green.