The rare snow dragon watches over the year-round ice of the south pole, never leaving the continent of Antarctica. The magnificent beast collects sunlight during the six months of summer and releases it in a slow glow during the subsequent six months of winter.
History
Antarctica was once part of a massive supercontinent nearer to the equator. When it broke away, it was still a fairly tropical place, and many species of dinosaurs made the long, slow ride south. Eventually, the cold did nearly all of them in, but one species, descended from the carnivore Allosaurus, adapted enough to survive the rapidly changing environment. Over the years, in the absence of other land-based predators, the small group of snow dragons came to dominate the continent, although their size remained smaller due to the environment.