The red-nosed reindeer is a rare sub breed of reindeer endemic to the North Pole. Unique proteins in their nasal mucous react from rapid temperature change, with freezing inhaled air and warm exhaled air, to create a unique red glow. The glow is often strong enough to guide the reindeer through thick fog or heavy snowfalls.

Some people have harnessed their unusual ability to fly without wings to pull heavy carts or sleighs through the air. The Scandinavian Red-Nosed Reindeer are notoriously tricky to breed in captivity so they are rarely used outside of making special urgent deliveries in late December when they are at their most active.

 📷 Jon Tyson on Unsplash