Audio: The co-evolution of altruism and war

The latest edition of Scientific American's weekly podcast, Science Talk, features Santa-Fe Institute economist Samuel Bowls who recently made a splash when he and a colleague argued, in a paper published in Science, that altruism and war had to have co-evolved. The interview with Bowls starts at roughly 15:00, in the first part of the show there is an interview with "spider woman" Greta Binford (also worth a listen).