One of the world’s foremost primatologists Frans de Waal‘s research tells us much about what can animals teach us about ourselves when it comes to economic, social and political power structures. Even how inequality in the workplace and pay inequity can fuel resentment. In his TEDx talk Frans shows what happens when two cappucin monkeys are paid differently for doing the same task. Frans’ most recent book Mama’s Last Hug tells of an outburst of emotion from chimpanzee Mama on her deathbed – telling much of what animals think and feel. Frans speaks with Kathryn Ryan about the primal emotions inequity provokes.