A large school of small fish swim in the ocean.  A seal swims in the ocean.  The scene switches to a dog scuba diving with humans.  The dog is shown with a human on a ship, with part of its scuba equipment on.  The scene returns to the dog scuba diving.  The scene changes to a cat walking around.  The cat is shown swimming and scuba diving.  The cat and dog are shown in various quick scenes together.