I thought narwhals were like fictional unicorns from the movie "Elf" But check this out! In the frigid Arctic Ocean, a mysterious toothed whale-the narwhal- resides among the ice floes. Although some evidence suggests it's the source of fantastical tales about unicorns, the narwhal is, in fact, a living, breathing mammal. There are roughly 172,000 of them swimming in the ocean today. | Ric Kearbey