by 
Anonymous
ANSWERS: 7
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In the distant past, very possible. Now, no.
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There might be some kind of hyper durable germ living deep underground, but most likely no.
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No evidence has arisen so far - and I don't think it is promising either. It is possible there was, long ago, though. It seems a few essential elements were present back then.
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None found so far but if it's more complicated than bacteria, I think the experts will be shocked. Happy, but shocked. . There's one other possibility -- it's possible that some particularly hardy bacteria hitched a ride on one of the landers we've sent. NASA and JPL are appropriately fanatical about keeping their spacecraft free from contamination precisely because they don't want to introduce bugs to Mars, but still.
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Bacteria. Its life, but not as we know it. Unless you consider bacteria our ancestor.
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It is interesting how many people say no. a) Mars certainly had the necessary conditions necessary in the past. b) Mars probably still has the necessary conditions underground. c) We have never done any experiments which would confirm or deny the existence of such microbes. d) Even if you believe life doesn't originate often, a Mars Rock Hits Earth Every Month ... much less often, an Earth rock hits mars.
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If one defines "life" as including bacteria, then yes, there probably is life of some kind there, because if there were no bacteria there, then the planet would literally be "sterile" or "germ free," and I personally don't think that there could be a place that once had (or currently has) water, that would not have some form of bacteria thriving within it. There may also be bacteria deep below the Martian surface, and if a probe dug deep enough, some form of life may be found, or relics of some life that once existed there might be discovered. Many scientists believe that life of some kind may have once existed on Mars, even if there is none there, today. Only a manned space flight to "The Red Planet" will be able to determine that. +5
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