You know Jane Goodall. She's the chimp lady. Either she's always been there, on the periphery of your everyday consciousness thanks to her celebrity status or — especially for those in fields that involve the study of animal groups — she's been there quite consciously, as a paragon and a guiding light. The English primatologist, ethologist, anthropologist and U.N. Messenger of Peace, now 81, revolutionized the way we think about and study animals. It was Goodall who first realized that in order to understand and learn from animals, we have to live with them in their environments. She's also, over the years, been an impassioned voice for environmentalism, nonviolence, and, speaking generally, for temperance, compassion and a child's sense of wonder.