Cats: The cat is a domestic species of small carnivorous mammal.
Dog: The dog or domestic dog is a domesticated descendant of the wolf, and is characterized by an upturning tail.
Ferret: The ferret is the domesticated form of the European polecat, a mammal belonging to the same genus as the weasel, Mustela of the family Mustelidae.
Gecko: Geckos are lizards belonging to the infraorder Gekkota, found in warm climates throughout the world. They range from 1.6 to 60 cm.
Frog: Frogs are a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura.
Gerbil: A gerbil is a small mammal of the order Rodentia.
Hamster: Hamsters are rodents belonging to the subfamily Cricetinae. The subfamily contains about 25 species, classified in six or seven genera.
Guinea Pigs: The guinea pig, also called the cavy or domestic guinea pig, is a species of rodent belonging to the family Caviidae and the genus Cavia.
Hedgehog: A hedgehog is any of the spiny mammals of the subfamily Erinaceinae, in the eulipotyphlan family Erinaceidae.
Rabbit: Rabbits, also known as bunnies or bunny rabbits, are small mammals in the family Leporidae of the order Lagomorpha.