Even up in the North Pole, sisters appear to be doing it for themselves. 

When we think of the story of Christmas, Santa Clause and all his little helpers, someone who springs to mind as Santa's faithful sidekick is Rudolph.

The reindeer did, after all, save Christmas back in 1939 when fog was thick on the ground. 

There's even a classic Christmas tune dedicated to the noble deed, in which Rudolph is referred to as a male. 

However, a recent viral Twitter post is here to debunk the general assumption that Rudolph, and the other eight stags of the sky, are male.

Twitter user Cat Reynolds points out that male reindeer lose their antlers in winter, while female deer maintain their's until summer. 

MALE REINDEER LOSE THEIR ANTLERS IN WINTER AND FEMALES DON'T THEREFORE SANTA'S SLEIGH IS ACTUALLY PULLED BY A TEAM OF STRONG, POWERFUL, UNDERRATED WOMEN!!!!! YOU GO, GIRLS!! I SEE YOU!!!

— Cat Reynolds (@catreynoldsnyc) December 11, 2017

As Santa is always depicted with his entourage of antler wearing reindeer, this could mean that Rudolph and co are actually a squad of fierce females. 

Scientists have even previously backed up this theory. 

Physiologist Perry Barboza of the Institute of Arctic Biology, University of Alaska at Fairbanks, who studies reindeer and caribou, told Live Science that it appears that Santa's reindeer would be female. 

 

A post shared by Elaine Karlsdatter (@ekarlsdatter) on Dec 12, 2017 at 3:02pm PST

He told the science mag that female reindeer would also have an advantage over their male counterparts when being headhunted for the task.

This is because female reindeer have higher body fat percentage than males in winter, meaning that they would be better equip to maintain energy levels on a long journey and stay warm.

So that settles it – Rudoph is a badass chick trailblazing in the niche transport industry.