Kid Justice and Stone Age Monkeys

A new Yale study shows that many children are willing to make personal sacrifices to punish wrongdoers — and even more so if they believe punishment will teach the transgressor a lesson. Anthony and Jeff are heartened by the findings and wonder if there is encouraging evidence about how humans perceive justice. Then, researchers have discovered that one population of white-faced capuchin monkeys in Panama have entered the Stone Age. Jeff and Anthony talk about what this means for how we conceptualize evolution, until Jeff ruins everything with a pun.