A new book, co-edited by Marc Bekoff, professor emeritus of ecology and evolutionary biology at the University of Colorado at Â鶹ӰԺ, blends stories, scientific reports, personal essays and even poems to illustrate the intrigue many people have with America's largest cat, the cougar. Called "Listening to Cougar," the book explores the mysterious nature of the animals more commonly referred to as mountain lions and the powerful effect they have on people, especially those who have had personal experiences with the elusive, wild animals.