Pets are animals that have been domesticated and that are kept by people for many reasons. There are pets quotes about cats, dogs, birds, fish, lizards, and even wildly exotic species that may be kept by people. Pets can be a terrific source of love and companionship as long as they are properly cared for and loved in return. Mankind has kept pets for protection and companionship for thousands of years, and in the past these animals have had useful purposes as well as keeping their masters company and providing unswerving loyalty. Cats were kept in order to eliminate mice and other pests that would enter he dwelling, and dogs were initially used for protection and to help with hunting food. Today most pets are beloved family members and owners in the USA spend millions on food, medical care, and other products and services for the animals that they own.