"...Ponies," says Joy. "Like - people. Regular people who aren't dragons. They have hooves and manes and tails and they walk around on four feet instead of two like me, and have flat teeth instead of sharp like mine, and there's three kinds. Earth ponies are strong and good at doing physical stuff and growing plants, and unicorns have horns that let them do magic, and pegasi have wings that let them fly and do weather stuff."