I agree that all life doesn't necessarily need that same conditions as us to live. but if there was life on Mars, in the sense of a working ecosystem, we would have found it by now.I honestly believe there is life on other planets, including our own solar system. Why does life automatically need oxygen, water, etc., to live? I know it sounds far fetched, but I believe that there are intelligent (not necessarily humanoid) life forms on planets, that we assume are "inhabitable" for life, in our solar system and other solar systems in our universe.


