Killer Cities uses a combination of social theory, polemic and close attention to empirical detail to tell the story of how and why cities cause mass animal death and, in the process, hasten the destruction of the planet. This book is not just a lament, however. It is an attempt to navigate out of this mess of planned and unplanned violence towards a world in which cities no longer act as killers but become aligned with the lives of other beings. It offers pragmatic ways of diminishing the death toll and changing mindsets without ever minimizing the dilemmas that inevitably will have to be faced. Killer cities can be rehabilitated so that they offer brighter paths towards the future - for animals, for human beings, and for the planet. A new urban geography could be within our grasp. Indeed, it has to be, for all of our sakes.