Jill Harness of Mental Floss has collected some interesting things you might not know about reindeer. As it pertains to Santa lore, I was already aware that the old guy’s team might, in fact, be all female in composition. I was not aware that they were probably of the Svalbard subspecies. Though not strictly Santa-centric, I was deeply intrigued to learn that reindeer can see ultraviolet light. That’s got to come in handy when you’re flying around the world in the dead of winter, right?