This list includes 8 Pets and domestic animals that start with U, from “Uaru” to “Uromastyx”. Many are popular with hobbyists and include aquarium fish, reptiles, and small mammals kept for companionship or display.
Pets and domestic animals that start with U are varied species people keep for companionship, hobby, or small-scale farming. For example, the Uromastyx is a notable pet lizard in desert regions, while the Uaru is popular among aquarium enthusiasts.
Below you’ll find the table with scientific name, size (cm), and classification.
Scientific name: You can use the scientific name to look up precise species information and avoid confusion between similar common names.
Size (cm): It gives the typical adult size range so you judge space and daily husbandry needs before choosing a pet.
Classification: Broad category (Mammal, Bird, Reptile, Fish, Arthropod) so you quickly understand general care and biological traits.
Pets and domestic animals that start with U
Name
Scientific name
Typical adult size (cm)
Classification
Uaru
Uaru amphiacanthoides
25–30
Fish
Ukrainian Levkoy
Felis catus
30
Mammal
Umal-Note: Ural Rex
Felis catus
30
Mammal
Umon-Note: Utonagan
Canis lupus familiaris
60–75
Mammal
Umbrella cockatoo
Cacatua alba
45
Bird
Uromastyx
Uromastyx ornata
35–50
Reptile
Urchin
Paracentrotus lividus
6–10
Other
Unicornfish
Naso unicornis
60
Fish
Descriptions
Uaru
South American cichlid popular in aquaria for its peaceful temperament and tall, laterally compressed body; needs large, planted tanks and calm tankmates.
Ukrainian Levkoy
A distinctive hairless, folded-eared cat breed from Ukraine, kept as a companion animal; playful, affectionate, and notable for its unusual appearance.
Umal-Note: Ural Rex
A curly-coated domestic cat breed (Ural Rex) known for a soft, short, wavy coat and friendly temperament; kept as a pet by cat enthusiasts.
Umon-Note: Utonagan
A domestic dog breed created to resemble wolves; intelligent and social, requiring exercise and consistent training, kept as companion dogs.
Umbrella cockatoo
A popular parrot species with a striking crest, highly social and vocal; requires lots of interaction, mental stimulation, and long-term care.
Uromastyx
A group of spiny-tailed desert lizards commonly kept by reptile hobbyists; herbivorous, diurnal, and needing hot dry enclosures with basking spots.
Urchin
Sea urchins are kept in marine aquaria for algae control and interest; slow-moving echinoderms that need stable water conditions and rockwork to graze on.
Unicornfish
A large marine surgeonfish known for a forward horn on larger males; sometimes kept by advanced hobbyists in very large reef or fish-only tanks.
If you think there is a missing term, let us know using the contact form.
