Our magic growing penguin hatchling is at once amusing, funny and unique. Simply place the three inch egg in a container of water and wait about 8 hours for your penguin chick to slowly make its way out of the egg. Egg hatches in 12 -24 hours. Once the penguin chick has completely broken free of its egg, remove and add more water. Then watch your baby penguin hatchling grow and grow. It's like two toys in one! When your chick outgrows his container, move him to a larger one and watch him grow even larger for a few more days! It's like raising your own penguin baby, without the mess.