The first written account of Santa Claus having reindeer was in 1821, and since then most people have assumed the reindeer were male 香蕉视频直播� but a scientist says those people would be wrong.

Andrew Hebda, a zoologist at the Nova Scotia Museum, says while both male and female reindeer have antlers, only the females have their antlers during the winter months.

香蕉视频直播淏eing members of the deer family, the males grow their antlers a little bit earlier and just after mating season, which is just about finished now, they drop off. So over a winter you香蕉视频直播檒l never see a male with antlers,香蕉视频直播� Hebda said.

Pregnant females use their antlers to dig through the snow in search for food, and lose them just before giving birth, he said.

It香蕉视频直播檚 most likely, he said, that Rudolph, Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner and Blitzen are all female.

香蕉视频直播淎ny reindeer right now with antlers is a girl,香蕉视频直播� he said.

New focus has been placed on their gender in part because of a New York City Twitter user香蕉视频直播檚 assertion this month they are 香蕉视频直播渁 team of strong, powerful, underrated women.香蕉视频直播�

The tweet, relying entirely on the antler theory of gender, proved very popular 香蕉视频直播� it has garnered more than 680,000 likes and more than 200,000 retweets.

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!!!

香蕉视频直播� Cat Reynolds (@catreynoldsnyc)

A Chicago Zoological Society blog post echoes the contention that the antlers tell the tale.

香蕉视频直播淭his isn香蕉视频直播檛 to say Santa only had female reindeer, but the nine flyers were girls,香蕉视频直播� it said.

香蕉视频直播淟et香蕉视频直播檚 be honest, unlike Santa, reindeer don香蕉视频直播檛 live forever, so Santa needs both male and female reindeer, no? Because boy reindeer don香蕉视频直播檛 give birth to future generations of magical flying reindeer.香蕉视频直播�

Hebda says there香蕉视频直播檚 another option 香蕉视频直播� castrated male reindeer don香蕉视频直播檛 lose their antlers.

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香蕉视频直播淭hat香蕉视频直播檚 always a possibility. It香蕉视频直播檚 a question of whether Santa has followed a code of practice for proper raising of animals in castration is perhaps up in the air at the moment, but that香蕉视频直播檚 a possibility,香蕉视频直播� Hebda said.

Hebda said European reindeer are cousins of the North American caribou. There have been some introductions of reindeer into North America 香蕉视频直播� most recently into Newfoundland, he said.

While Hebda can talk about reindeer gender, he香蕉视频直播檚 not prepared to explain how they fly.

And while many children leave milk and cookies out for Santa on Christmas Eve, Hebda said that香蕉视频直播檚 not a good choice for the reindeer.

And he said carrots may also be too rich of a treat to leave out for Santa香蕉视频直播檚 reindeer. He suggests lichens, leafy greens and dried mushrooms instead.

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