“I’m a human,” she said. “I suppose I could describe us for you. We call our world the Earth. We stand… oh, I’d say the average is slightly shorter than Princess Celestia, if you include her horn. We stand on two legs, and we have arms with hands, kind of like Spike, though without the claws. Um. We’re mostly hairless, except for the tops of our heads and… um… a few other places. Unlike ponies, we wear clothes pretty much all the time. Since we don’t have any magic on Earth, we had to get really good with science and engineering-“