MichaelSmith writes: Scientists think that there might be arsenic based life in Mono Lake, California. If it shown to exist such life could have evolved independently from our own, or it could have forked from ours at a very early stage. Link to Original Source
"Well, it don't make the sun shine, but at least it don't deepen the shit."
-- Straiter Empy, in _Riddley_Walker_ by Russell Hoban