Also known as: トナカイ
A species of Deer native to arctic, tundra, and mountainous regions. Popularly associated with Christmas as Santa Claus' mode of transportation along with his Sleigh. They're also the only species of deer where females normally have antlers.
Deer of this species native to North America are known by the name caribou.
Tony Tony Chopper from One Piece is a sentient reindeer.