Tigers have their stripes, gorillas have their silver backs & humans have their chins. While it may not be as large of an evolutionary accomplishment as our brains or hands, humans are the only animal to have a chin, according to Smithsonian Magazine.

At the dawn of the United States, before modern dentistry had evolved, tooth pain could reach historic levels. Nearly every U.S. schoolchild has heard the story of George Washington and his wooden teeth. While the story has gained a level of fiction in the style of tall tales—the false teeth he had were not wooden—the […]