        She sighed, closed her mouth, and began thoughtfully examining the drawings of the skeletal system.  “Not too different from our own,” she muttered.  She stood on her hind hooves—she was one of the few unicorns in Ponyville who could make the maneuver look graceful—and experimentally moved her forelegs around.  Satisfied, she happily flipped through the book until she returned to the section on clothing.