I first saw hints of this phenomenon a few years ago when I was growing bacteria on textiles for a collborative art project with Anna Dumitriu but have only now started to explore it further. If fine threads of material (cotton in this case) are placed on the surface of solid bacterial growth media, and then inoculated with motile bacteria, then the bacteria are able to travel along these but not the rest of the agar surface. Wires, that carry bacteria and not electrons? Bacterial Highways? Threads of Life?