books.google.ca - Scientists and conservationists are beginning to understand the importance of top carnivores to the health and integrity of fully functioning ecosystems. As burgeoning human populations continue to impinge on natural landscapes, the need for understanding carnivore populations and how we affect them...http://books.google.ca/books/about/Desert_puma.html?id=04joHfHvpsEC&utm_source=gb-gplus-shareDesert puma