Electric life forms that live on energy
> <i>As you may recall from high school biology, almost every living organism consumes sugar to survive. When it gets right down to it, everything you eat is ultimately converted or digested into single molecules of glucose.</i><p>This is an oversimplification. Some bacteria have very weird metabolism. (Or, from the other point of view, some bacteria think that we have a very weird metabolism :) ). They oxidize and reduce different kind of compounds to obtain energy. More info: <a href="http://en.wikipedia.org/wiki/Microbial_metabolism" rel="nofollow">http://en.wikipedia.org/wiki/Microbial_metabolism</a><p>The [extremetech] article has very few details and I think that it's misleading. I can't find the original research article.<p>There are some interesting details in the video. (Is this a video of this experiment?) Apparently these bacteria use O2 (oxigen) and H2S (hydrogen sulfide). The metabolism is probably like:  <a href="http://en.wikipedia.org/wiki/Microbial_metabolism#Sulfur_oxidation" rel="nofollow">http://en.wikipedia.org/wiki/Microbial_metabolism#Sulfur_oxi...</a>