PBS: The Human Spark - Kids Are Naturally Altruistic

Put to work at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, Alan Alda finds out how children will help -- and like it, while chimps are less inclined to offer enthusiastic assistance.

In "The Human Spark," Alan Alda visits dozens of scientists on three continents -- and even undergoes an examination of his own brain -- to find the answer to one question: What makes us human? http://www.pbs.org/humanspark