On Wednesday the world learned that author and photographer Timothy Treadwell and his girlfriend were found dead in Alaska, apparently mauled by a grizzly bear. Last week, a tiger attacked illusionist Roy Horn, of the popular Las Vegas show "Siegfried & Roy," onstage. Horn remains in critical condition. We'll discuss what prompts wild animal attacks.
* Professor of Psychology and Neurosciences at Harvard University *Author of Wild Minds: What Animals Really Think