The Nightwatch ( London), 2004 Francis Alÿs

Francis Alÿs The Nightwatch was made by releasing a fox into Londons National Portrait Gallery and following its movement through the galleries using the museums CCTV system. The installation itself mimics the wall of monitors in a surveillance station. Alÿs was inspired partly by the proliferation of surveillance cameras around London, and by the number of urban foxes forced to lead a scavenger existence in the Tate