Mammal Pictures of the Year Screensaver - Version 1.1 Mammal Pictures of the Year is a delightful look at some of the most stunning images of mammals taken by photographers. The Hippo's, Tiger, and Lion are among my favorites from this set! These pictures were selected by users as the best of the best in animal photography. Mammal Pictures of the Year is a free screensaver created by RateMyScreensaver.com.