Reindeer

The reindeer (Rangifer tarandus), also known as caribou in North America, is a species of deer with circumpolar distribution, native to Arctic, Subarctic, tundra, boreal and mountainous regions of northern Europe, Siberia, and North America. This includes both sedentary and migratory populations.

While overall widespread and numerous, some of its subspecies are rare and at least one has already become extinct.

Reindeer vary considerably in colour and size. In most populations, both sexes grow antlers annually, but females lack antlers in a few. Antlers are typically larger on males.

Hunting of wild reindeer and herding of semi-domesticated reindeer (for meat, hides, antlers, milk and transportation) are important to several Arctic and Subarctic peoples. In parts of Sápmi, reindeer pull pulks. In Christmas folklore, Santa Claus's flying reindeer are well known for pulling his sleigh.

https://en.wikipedia.org/wiki/Reindeer