Because they:
1) Can fly
2) Can withstand cold weather
The reindeer pulling Santa Claus' sleigh are:DasherDancerPrancerVixenCometCupidDonnerBlitzenRudolph
They walk On four legs, unless they are santa's magical reindeer, then they fly.
Reindeer have quadrupedal, or four-legged motion. If they work for Santa Claus, they can also fly.
yes how would santa fly without his reindeer and how would santa get food when he is so busy
Of course you can see a picture of Santa flying!
Yes, of course he dose
This is a very closely guarded secret, known only by Santa Claus. If everyone knew it, then anyone finding their way to Santa's secret workshop would be able to command the reindeer to fly.
Santa can't fly, although he can glide up and down chimneys; that's a little magic trick of his. Santa's reindeer fly because they are a very special, rare breed.
There are always 9 reindeer when Santa flies.
santa has always and will always have the same reindeer team.
Santa Claus's Reindeer pull the sleigh on Christmas Eve night.
Rudolph is a fictional reindeer that helps to pull the sled of Santa Claus. It is said that Rudolph can fly and has a bright red nose that helps Santa navigate in bad climactic conditions.