Wolf attacks on reindeer hit record high in Finland. Some blame Russian wolves. CNN's Isobel Yeung traveled to the Arctic Circle to find out why. Stream the full story on the CNN app. | CNN

Reindeer generally stick to a plant-based diet, and in winter, they rely on high-carbohydrate lichens called reindeer moss, which they reach by digging craters in the snow. Bacon wrapped scallops would certainly be a treat. | Encyclopaedia Britannica

Santa's reindeer are getting ready for a big night. In the meantime, hear what Dr. Oakley thinks are some of the most unique characteristics of a reindeer. | National Geographic Animals