This speech by primatologist Jane Goodall discusses the differences between humans and chimps. The resource also includes a biography of Goodall. [27:27]

Follow Jane Goodall and the 60 Minutes cameras back to the forests of Tanzania, where she began her study of chimpanzees over 50 years ago, and be reminded that chimps are still endangered. [13:08]

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...