Is it human nature to be greedy and selfish? Primatologist Frans de Waal doesn't think so. In his new book "The Age of Empathy: Nature's Lessons For a Kinder Society" de Waal says empathy and solidarity are our primate heritage. De Waal joins guest host Joe Palca in this hour for look at how he thinks we humans may learn to get along better by looking to the natural world.
Produced by Annette Heist, Senior Producer