Little carnivorous felines (Felis catus) are domesticated.The domestic cat is the only domesticated Felidae species.
Dogs (Canis familiaris or Canis lupus familiaris) are tamed wolves with upturned tails. The contemporary wolf is the dog's closest cousin.
Rabbits, commonly known as bunnies or bunny rabbits, are tiny mammals in the family Leporidae (which includes hares) of the order Lagomorpha (which also contains the pikas).
The horse, an odd-toed, hoofed mammal of the taxonomic family Equidae, is a domesticated subspecies of Equus ferus caballus.
Hamsters are Cricetinae rodents. The subfamily has 25 species in six or seven genera.
Guinea pigs (Cavia domestica) are rodents of the family Caviidae and genus Cavia.
Squirrels are Sciuridae rodents. Squirrels include tree squirrels, ground squirrels, chipmunks, marmots, flying squirrels, prairie dogs, and others.
Lizards are squamate reptiles with over 7,000 species that live on all continents save Antarctica and most oceanic island chains.
Hedgehogs are spiny mammals of the eulipotyphlan family Erinaceidae, subfamily Erinaceinae.
The ferret is the domesticated version of the European polecat, a Mustelidae mammal of the same genus as the weasel, Mustela.