The Earthworm Ambulance roams through the cityscape, collecting earthworms that are unable to find their way back into the soil. The ambulance searches for an adequate new habitat for the disoriented worms. Earthworms are - among others - indispensable organisms for soil formation, likewise, their numbers are an indicator of soil quality.

See the Earthworm Ambulance on duty at an early stage of its construction (during an "Emergency Mobile" happening, camera: Thierry Geoffroy)

The Earthworm Ambulance
later work