"Rocking, rolling, clickety-clack, coming closer down the track . . . " The dream train pulls into the station, and one by one the train cars are loaded--polar bears load the reefer car with ice cream, elephants fill the tanker cars with paints, tortoises' load the auto rack with racecars, seals fill the hopper car with balls (zebras referee). Delightful fun for fans of trains.