Books like Lord of the Flies and the TV show Survivor give us one view of humanity - that we are one step away from killing each other to get ahead. Violence seems to be our default setting .
Our biology has actually wired us to be good, and work together says the director of the Human Nature lab at Yale University, Nicholas Christakis. Working together is in our DNA.
He reveals the plan evolution sets out for us about how we should treat each other in his book, BLUEPRINT: The Evolutionary Origins of a Good Society