No, it really isn’t 1 April, nor is this something out of Douglas Adams or Terry Pratchett …
Stick an electrode in the ground, pump electrons down it, and they will come: living cells that eat electricity. We have known bacteria to survive on a variety of energy sources, but none as weird as this. Think of Frankenstein’s monster, brought to life by galvanic energy, except these “electric bacteria” are very real and are popping up all over the place.
Unlike any other living thing on Earth, electric bacteria use energy in its purest form — naked electricity in the shape of electrons harvested from rocks and metals … Experiments growing bacteria on battery electrodes demonstrate that these novel, mind-boggling forms of life are essentially eating and excreting electricity.
That should not come as a complete surprise … we know that life, when you boil it right down, is a flow of electrons …

A few years ago, biologists discovered that some produce hair-like filaments that act as wires [see above], ferrying electrons back and forth between the cells and their wider environment … tens of thousands of electric bacteria can join together to form daisy chains that carry electrons over several centimetres … it means that bacteria living in, say, seabed mud where no oxygen penetrates, can access oxygen dissolved in the seawater simply by holding hands with their friends.
From: New Scientist; 19/07/2014. Read the full story (paywall).