Extreme Conservation Book (IMAGE) Colorado State University Caption A journey into some of the most forbidding landscapes on earth, Joel Berger's Extreme Conservation is an eye-opening, steely look at what it takes for animals like these to live at the edges of existence. Credit The University of Chicago Press Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.