If we look straight and deep into a chimpanzee's eyes, an intelligent self-assured personality looks back at us. If they are animals, what must we be?
Frans de WaalThe possibility that empathy resides in parts of the brain so ancient that we share them with rats should give pause to anyone comparing politicians with those poor, underestimated creatures.
Frans de WaalMale chimpanzees have an extraordinarily strong drive for dominance. They're constantly jockeying for position.
Frans de Waal