Giant George and Boo Boo are both amazing animals in their own right, but in very different ways. At 245-pounds and 7' 3" from nose to tail, Giant George is the world's biggest dog-- and, at 4 inches tall, Boo Boo is the world's smallest. The two got together for a meeting in New York City's Central Park to celebrate the 2011 edition of the Guinness World Records. Boo Boo's owner remarked that she was afraid Giant George would mistake the smaller dog for a snack, but it appeared they both got along. (Photo by Zach Wilson/Courtesy Buck Wolf/AOL)