Petco Sells Brands with Science Royal Canin Steps Up Supply Chain Forecasting Petco Gets into Science with Hill's PetSmart Thinks Small Royal Canin, Petco Throw Pets a 'Lifesaver' Royal Canin Parties at PetSmart Petco Asks Consumers to Change Their Pet Food PetSmart Celebrates Early PetSmart Rethinks Food PetSmart Has Much to 'Celebrate' 1 2 Next Last