They have very thick coats (thicker than most horse's winter coats) that protect them from the bitter cold of winter in the Gobi Desert. They also have short tail hair at the dock and longer hair...
Well what do you think?People wanted to call it some thing so they called it horse!?!?!Another name for the whole of the horse family (zebra,donkey,mule,pony,ect)is Equine