A reindeer, also known as a caribou, is a majestic and iconic species of deer characterized by its large size and impressive antlers. These herbivorous animals are native to the Arctic regions of North America, Europe, and Asia. Reindeer have adapted to survive in harsh environments, with their thick fur providing insulation against the cold and their broad hooves enabling them to traverse snowy terrain. They play an important role in indigenous cultures and folklore, often associated with Santa Claus and his sleigh during the holiday season.