[Ultralomaniac]

The idea of other beings "like our own" is much too specific.
We, as human beings, are what is available to us. what is on the planet defines us.
within other galaxies, there are different physics. gravity may not even exist in other galaxies. the materials on the planet may be completely different. the concept of "metal" or "organic" may be completely unapplicable in another galaxy

the organisms on our planet are all fueled, directly or indirectly, by one source: the sun.
i believe that this must be true to every other ecosystem, even in other galaxies, because it is the only constant, unlimited supply of energy that will continue to penetrate the eart (or whatever planet it may be)

animals on this planet have a circulatory system and a nervous system. what if this "intelligent being" on another planet doesn't have either of these? it's more than likely. if you support the idea of evolution, then you must agree that the only reason animals of this planet are this way, is that that particular mutation of bacteria millions of years ago was better suited to reproduce than the others.

Furthermore, said "intelligent beings" could also be completely undetectable by our standards. i think it's safe to say that there may be no other life in our solay system, but there could be dozens of other intelligent beings within our scope of visual sight, but they may be, to us, completely invisible, just as we may be to them.

Of course there are other intelligent beings in the universe. there has to be. it would be impossible for there not to be