A pet store or pet shop is a retail business which sells different kinds of animals to the public. A variety of animal supplies and pet accessories are also sold in pet shops. The products sold include: food, treats, toys, collars, leashes, cat litter, cages and aquariums. Some pet stores provide engraving services for pet tags, which have the owner’s contact information in case the pet gets lost.In the USA and Canada, pet shops often offer both hygienic care (such as pet cleaning) and esthetic services (such as cat and dog grooming). Grooming is the process by which a dog or catss physical appearance is enhanced and kept according to breed standards for competitive breed showing, for other types of competition, like creative grooming or pet tuning contests, or just to their owners taste. Some pet stores also provide tips on training and behaviour, as well as advice on pet nutrition.There are many large pet stores located in the US and Canada, including: Petland, Pet Valu, and PetSmart. In the United States, Petco is also a popular pet store. In addition, there are many smaller pet shops that arent part of big chains, such as Big Al’s and Pet Food Express, which have a smaller number of locations.Pet stores are extremely popular in today’s society. In 2004, according to the American Pet Products Manufacturers Association, in the pet industry, live animal sales reached approximately $1.6 billion. Moreover, in a 2003 survey in the US, merely 38% of U.S. pet shops claimed that they did not sell any live animals.