‘Exoskeleton, topography of a second skin’ are 2 lightboxes with photographs of the Winogradski experiment. The experiment researches what bacteria can tell us about the soil they live in. Soil samples (a highly diverse micro-ecosystem of soil bacteria and algae) were cultured for several weeks. The sealed cultures were developing independently over time, and the bacterial communities were slowly changing color, thereby forming textures and patterns in response to the environmental elements such as oxygen, light and temperature. The end result -the photographs- function thus as a portrait of the region where the soil samples were taken and represent the detailed complexity of the local environment, its genetic, bacterial and geological profile.