From Wikipedia, the free encyclopedia.
- This page is about domestic animals. For several meanings of the acronym PET, see PET.
While in theory one could keep a blue whale as a pet, in practice a small number of species of mammals and birds have dominated the pet scene for a very long time. Fish have joined them more recently. With the exception of iguanas and non-venomous snakes, few reptiles and amphibians make good pets.