Just found this on the internet, and thought some of you might be interested. They eat, and crap electrons. Kinda makes you wonder what nourishment can be gained if it goes out in the same form as it went in.
very good article
Very interesting. The finding here is a whole family of electron eating bacteria that we never knew of before. It's not that what electricity comes out is the same as went in. What comes out can be used by other bacteria along this new type. Study of all this might produce a new smart technology like we have never known before as we find new "friendly" bacteria.