Dear readers, I submit to you Escherichia coli. This wonderful little microbe, when fed waste from chocolate factories, will, um, excrete electricity-producing hydrogen.
But wait, that's not all this friendly microscopic organism can do.
Escherichia coli can also be used to recycle metals from old catalytic converters, thus reducing the amount of contaminants dumped into our landfills.
Here is a bacteria which is more productive and benign than most of humanity!
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