Scientific classification
Class: Mammalia
Family: Cervidae
Genus: Rangifer
Species: tarandus
Binomial name
Rangifer tarandus
The reindeer is an Arctic-dwelling deer (Rangifer tarandus), otherwise known as caribou. Economically important herds in the north of the Old World have become less important.

Popular Christmas myth has it that they are used by Santa Claus to move his sleigh around during his trip to distribute toys to children on the night before Christmas. Because of this, they are often associated with the holiday.