David Sloan Wilson believes that evolution is not just a description of how we got here. He says it can also be a tool kit for improving how we live together. He’s taken what he’s learned in studying evolution in animals and is now applying it to the behavior of groups in his hometown of Binghamton, New York. His goal is to help people behave pro-socially — at their best, and for the good of the whole. This is Krista Tippett’s complete, unabridged conversation with David Sloan Wilson that’s included in the show “Evolving a City.” See more at onbeing.org/program/evolving-city/4720