Pets to be continue...
While in theory one could keep any animal as a pet, in practice a small number of species of mammals, especially dogs and cats, and other small animals, such as birds, have dominated the list of species kept as pets for a very long time. Fish have joined them more recently. Many of these animals are domesticated, while others, such as reptiles, are often considered exotic pets. The glofish, a genetically modified zebrafish with a bright red fluorescent color, is the first genetically modified (GM) animal to be engineered as a pet.
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