PetSmart is the world?s largest pet supply and service retailer, offering over 10,000 products in each store to meet all of your pet?s needs. Did you know that we offer pet grooming, training and veterinarian services? PetSmart also offers a varied selection of animals for sale and adoption such as dogs, cats, birds, fish, amphibians, reptiles, and several breeds of small animals like guinea pigs, gerbils, hamsters, mice and much more. Visit your Saint Charles, MO PetSmart today!