The purpose of signalling devices like the lights in the photograph is well known to us all. Those in particular are the first traffic lights in the Valley of Carranza (Bizkaia), where I live, a once eminently rural area. The signals in question are part of the so-called ‘urban furniture’. Street lamps were installed several decades ago, to the delight of bats watching their nightly helping of food flutter to the light. Later came a few pavements, and down in the middle of the Valley, away from the reign of the cows, some ‘zebra crossings’ were painted. (more…)