Research suggests natural electrical grid deep inside Earth enables many types of microbes to survive

To "breathe" in an environment without oxygen, bacteria in the ground beneath our feet depend upon a single family of proteins to transfer excess electrons (produced during the "burning" of nutrients) to electric hairs called nanowires projecting from their surface.

This family of proteins, in essence, acts as plugs that power these nanowires to create a natural electrical grid deep inside the Earth, which enables many types of microbes to survive and support life.