According toGizmodo.com NASA announced today that they've discovered a new life form that may well have evolved independently of all life here on earth.
Which lends credence to my crazy theory that all life on earth probably DIDN'T evolve from a common ancestor. My thinking: If life really IS due to chemistry and not some direct divine intervention, there's no reason that it should be rare. In fact it should be as ubiquitous as other things caused by chemistry are. In fact, I see no reason why some of the five kingdoms of life could not have evolved separately from unique origins.
Okay, yeah, so it's not nearly as cool as Gizmodo initially made it seem: