Nature is under attack. The rainforests are shrinking, the ice caps melting, the seas poisoned. But there is one habitat that is expanding and thriving: the urban jungle. Our cities are not just filled with human life but with a surprising array of species that have come to live alongside us. In the heart of the city, evolution is moving at breakneck speed. Countless species are adapting to living in towns and, in some cases, entirely new species are being born. Join Simon Watt, presenter of the award winning documentary Wild Cities Belfast, as he looks at some of our new neighbours.