That's Not Fair!

You know how it felt when you found out your boss was paying a co-worker more money than you for doing the same job? In this excerpt from a TED Talk, Frans de Waal presents a classic experiment in which capuchin monkeys were confronted with such unfairness. You'll get a kick out of the way the monkey reacts. You can see the full talk called Moral Behavior in Animals, which covers empathy, reciprocity, and cooperation, as well as fairness, at the TED site. (via Viral Viral Videos)