As a part of a collaboration with Tega Brain and Diego Bonetto, Mark designed and illustrated the signage for the City Wilderness Trail. Commissioned by City of Sydney's Laneways Public Art Programme, and launched for Art and About, the City Wilderness Trail is a distributed public art project which acknowledges the city as host to an incredible diversity of non-human populations. Mark, Tega and Diego are creating an urban trail that draws attention to fifteen different bird, mammal and insect species that live in the CBD. The signs will be hidden throughout the laneways and spaces along George Street. This project celebrates urban biodiversity as something of value that should be welcomed and designed for. Instead of approaching nature as something that is 'out there', the City Wilderness Trail presents the natural world as a dynamic, evolving and complex system of which our cities and societies are actually an important part.