All life is ultimately powered by electricity, albeit indirectly, since most organisms consume sugars that produce electrochemical reactions. Several types of bacteria are known to skip the sweets and go straight for the electrons, however -- and researchers have discovered that they may be everywhere. The New Scientist reported that biologists have grown bacteria (Mariprofundus ferrooxydans PV-1) that harvest electrons directly from iron electrodes. Several species were literally teased out of soil from a seabed floor and deep well in Death Valley, California, just by applying a charge to the ground. In a lab environment, a separate team found that they can be kept alive exclusively with electricity and no other sugars or other nutrients (see the video, below).