This list includes 19 Pets and domestic animals that start with J, from “Jack Dempsey” to “Jumping spider”. They range from small aquarium fish and arachnids to birds and mammals, commonly kept for companionship, display, or small-scale husbandry.
Pets and domestic animals that start with J are species people keep for companionship, work, or hobby purposes. A notable example is the “Jack Dempsey” cichlid, named for its fighting appearance and popular in home aquariums.
Below you’ll find the table with scientific name, size (cm), and classification.
Scientific name: Use the scientific name to confirm species identity and find reliable care or breeding information when you research further.
Size (cm): Typical adult size in centimeters helps you assess housing and handling needs for each animal before you decide to keep one.
Classification: Broad classification (Mammal, Bird, Reptile, Fish, Arthropod) shows biological group and guides general care expectations.
Pets and domestic animals that start with J
Name
Scientific name
Typical adult size (cm)
Classification
Jack Russell Terrier
Canis lupus familiaris
25–38
Mammal
Japanese Chin
Canis lupus familiaris
20–28
Mammal
Japanese Spitz
Canis lupus familiaris
30–38
Mammal
Japanese Bobtail
Felis catus
23–30
Mammal
Jindo
Canis lupus familiaris
48–55
Mammal
Javanese cat
Felis catus
23–30
Mammal
Jersey cow
Bos taurus
120–135
Mammal
Jersey Giant
Gallus gallus domesticus
70–80
Bird
Japanese bantam
Gallus gallus domesticus
25–30
Bird
Java
Gallus gallus domesticus
55–65
Bird
Japanese quail
Coturnix japonica
16–18
Bird
Java sparrow
Lonchura oryzivora
14–15
Bird
Jack Dempsey
Rocio octofasciata
25–30
Fish
Jewel cichlid
Hemichromis bimaculatus
10–15
Fish
Jade perch
Scortum barcoo
30–40
Fish
Jersey Wooly
Oryctolagus cuniculus
20–25
Mammal
Jacob sheep
Ovis aries
60–90
Mammal
Jinhua pig
Sus scrofa domesticus
60–90
Mammal
Jumping spider
Phidippus regius
1–2
Arthropod
Descriptions
Jack Russell Terrier
Small, energetic domestic dog breed popular for families and active owners; kept widely as a companion and working terrier.
Japanese Chin
Tiny, affectionate toy dog with a flat face and aristocratic history; a popular indoor companion pet.
Japanese Spitz
Fluffy, white companion dog known for friendliness and loyalty; commonly kept as a family pet.
Japanese Bobtail
Domestic cat breed with a distinctive short tail and playful, people-oriented personality; kept as a companion indoors.
Jindo
Korean dog breed valued for loyalty and hunting ability; commonly kept as family pets or working dogs.
Javanese cat
Sleek, vocal domestic cat breed related to the Oriental group, popular as an affectionate indoor companion.
Jersey cow
Small dairy cattle breed prized for rich milk; a common domestic livestock animal on farms worldwide.
Jersey Giant
Large domestic chicken breed kept for meat and eggs by smallholders and hobbyists.
Japanese bantam
Dwarf ornamental chicken breed popular in backyard flocks and poultry shows for its compact size and appearance.
Java
Heritage chicken breed used historically for meat and eggs; kept by smallholders and poultry enthusiasts.
Japanese quail
Small domesticated game bird kept for eggs, meat, and as pets in aviaries and small farms.
Java sparrow
Popular cage finch with pleasant calls and social behavior, commonly kept as a pet bird.
Jack Dempsey
Colorful, robust freshwater cichlid popular in aquariums for hobbyists who appreciate bold patterns and personality.
Jewel cichlid
Brightly colored aquarium cichlid kept by hobbyists; attractive but territorial, suited to experienced aquarists.
Jade perch
Freshwater fish raised in aquaculture and sometimes kept in large home aquaria; hardy and valued for food and hobby ponds.
Jersey Wooly
Compact domestic rabbit breed bred for docile temperament and suitability as an indoor or family pet.
Jacob sheep
Distinctive multi-horned heritage sheep kept by smallholders for wool, conservation flocks, and as ornamental livestock.
Jinhua pig
Traditional Chinese domestic pig breed raised on farms for meat; a common domestic livestock animal in its region.
Jumping spider
Small, active spider species often kept by arachnid enthusiasts; not domesticated but commonly kept and easy to observe.
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