A pet-animal, also known as a domestic or companion pet, is an animal kept mainly for the owner’s business or recreation and not for a specific purpose such as a research animal, live stock, or laboratory animal. Companion animals include dogs, cats, fish, birds, rabbits, guinea pigs, and horses. Some of these animals are commonly kept as pets and others are used for performance, testing, or scientific research.
Many species can be found in zoos and aquariums worldwide. Other types of pets are generally bred for the sole purpose of hunting. Pets may come in various breeds, sizes, and colors. Examples of domestic animals include dogs, cats, fish, birds, lizards, hamsters, rabbits, and guinea pigs. Some examples of wild animals include deer, lions, eagles, wolves, and monkeys. In some cases people adopt pets that belong to other individuals.
Examples of this would be the adoption of a German shepherd from a shelter. As mentioned, a pet-animal can be any species of living animal. People also get involved in pet ownership by purchasing, breeding, adopting, or selling these animals.
For example, a dog breeder purchases dogs from pet shops and rehabilitates them so that they can be sold to pet stores. Another example of this would be a goldfish breeder who sells his fish to aquarium shops.