Our hero, Aïlo, is a small reindeer from Lapland. There are tens of thousands of them in the region! Reindeer have antlers that grow back every year. They have evolved to survive in a glacial environment: their coat allows them to tolerate temperatures of -40°C and they can move through snow thanks to their very large hooves, unlike other herbivores. Reindeer eat grass and moss, but their favorite food is certainly lichen!