Reindeer, also known as caribou in North America, are remarkable creatures that can be found in the cold, Arctic regions of North America, Europe, and Asia. They are best known for their impressive antlers, which both males and females grow and shed annually. But did you know that reindeer have a unique ability to see ultraviolet light? This lets them spot predators and food in the snowy, white landscape. The survival skills of reindeer are astounding. They have adapted to survive the harsh Arctic conditions with a thick coat of fur that acts as an insulator, keeping them warm. Their broad, hoofed feet allow them to walk easily on snow and swim across rivers. Their noses are specially designed to warm the air they breathe before it enters their lungs, a vital feature in their frosty habitat. Reindeer play an important role in the culture of indigenous Arctic peoples, who have relied on them for centuries as a source of food, clothing, and transport. In modern culture, reindeer are associated with Christmas, thanks to the popular story of Santa Claus and his sleigh pulled by flying reindeer.