I’ve been following the research of primatologist Frans de Waal on peacemaking among primates for a long time. Earlier this month I finally got to meet him in New York, where we had a conversation about his new book, The Age of Empathy: Nature’s Lessons for a Kinder Society.

I’ve embedded the first of a series of excerpts you can watch on YouTube. You can find all the excerpts here.

Originally published January 26, 2010. Copyright 2010 Carl Zimmer.