We are big fans of the breathtaking photos at National Geographic. Take a look at some of their Pictures of the Day With Animals. To start with, enjoy this picture of a grizzly bear mother and cub in Yellowstone. Click here to see the zebras, geckos, squid, puffins, clownfish, and more. And best of all: every one of these very high quality photos is downloadable free at wallpaper size. Thank you, National Geographic!