While both male and female reindeer grow antlers in the summer each year,
according to the Alaska Department of Fish and Game, male reindeer drop their
antlers at the beginning of winter, usually late November to mid-December.
Female reindeer retain their antlers until after they give birth in the spring.
Therefore, according to every historical rendition depicting Santa's
reindeer, every single one of them, from Rudolph to Blitzen - had to be a girl.
We should've known. Only women would be able to drag a fat-ass man in a red
velvet suit all around the world in one night and not get lost.