"Can you waddle like a penguin with a little orange beak? Wiggle-wiggle-waggle! Squeak-squeak-squeak!" "Can you stomp like an elephant with a big old purple trunk? Boom-boom-badoom! Crunch-crunch-crunch!" All animals move, but how they move - whether they waddle, stomp, or fly, is a source of endless fascination for children.