Impressive Animals: #5 World's cutest dog
Boo, the so-called cutest dog in the world, is a fuzzy Internet sensation. With more than 5 million Facebook fans and several books, the Pomeranian pooch is a certified superstar with a hefty wardrobe budget. By mid-August, however, there were reports that Boo's owner actually works for Facebook. But with a line of stuffed animals on the way, Boo is too busy to worry about any suspicious rumors (they are probably just jealous). (Photo courtesy Gretchen LeMaistre/Chronicle Books)
