Pet rats are usually domesticated Rattus norvegicus, the brown rat selectively bred for calmer temperaments, better social behavior, and eye-catching coats.
If you are asking what rats are pets, the short answer is that the rats kept as companions are almost always fancy rats, meaning domesticated rats bred for life with people rather than for the wild.
Pet rats are not just tiny versions of wild rats. Their needs, personalities, and health risks differ, and the right setup makes a big difference in how well they do at home.
If you want a rat as a pet, you also want to know which types are common and what basic care keeps them healthy.
The Pet Rat Species And What Counts As A Pet Variety
Most pet rats come from the same species, Rattus norvegicus, also called the brown rat.
Breeders selected for friendlier temperaments and many coat, ear, and color traits, which is why you see so many rat varieties today.
Why Most Pet Rats Are Domesticated Brown Rats
The pet rats you meet in homes and shops descend from the brown rat.
According to the MSD Veterinary Manual on rats as pets, people domesticated these animals in Victorian times and later bred them for color and fur traits.
Pet rats are usually calm and curious when raised well.
Wild rats and pet rats may look similar at a glance, but their behavior and comfort around people are very different.
Species Vs Variety: What Fancy Rat Really Means
The term fancy rat refers to a pet variety, not a separate species or breed.
Pet rats are generally the same species, and their differences are usually described as varieties, types, or strains rather than breeds, as noted by Lafeber.
When you hear fancy rats or domestic rats, you are usually hearing different names for selectively bred pet rats.
The label describes appearance and lineage more than a distinct species.
How Pet Rats Differ From Wild Rats And Pet Mice
Breeders raise pet rats to live with people, while wild rats have strong survival instincts and do not suit handling.
Pet mice are also different animals, even though both are small rodents and can be companion pets.
Rats are larger, more social, and usually more interactive than pet mice.
If you want an animal that often bonds closely with you and enjoys regular handling, pet rats tend to be the better fit.
Common Pet Rat Types You Will See
Most pet rat types are defined by ears, coat texture, hair coverage, and color.
You may see many combinations, since one rat can have a specific ear type and a distinct color or pattern.
Standard And Dumbo Ear Types
The standard rat has ears set higher on the head.
Dumbo rats have ears set lower and farther to the sides.
Both standard rats and dumbo rats can make great companions, and ear type mainly affects appearance.
Many people simply choose the look they like best.
Rex, Double Rex, Satin, Bristle Coat, And Harley Coats
Rex rats and double rex rats have curly or wavy coats, with double rex often having patchier hair.
Satin rats have a smooth, shiny coat, while bristle coat rats have a rougher texture.
Harley rats are less common and can have longer, softer coats.
Coat type changes grooming needs a little, yet none of these varieties is automatically better or worse as a pet.
Hairless, Patchwork, And Tailless Varieties
Hairless rats have very little or no coat, so they need extra warmth and closer monitoring for skin issues.
Patchwork rats may have irregular hair loss or changing coat patterns, which can make them look unique.
Tailless rats and manx rats are rare and should be evaluated carefully before adoption.
Because the tail helps with balance and temperature control, these rats may need a bit more attention in daily care.
Popular Colors And Patterns Like Agouti, Albino, Blue, British Blue, And Silver Fawn
Agouti rats have a natural brownish, wild-type look.
Albino rats are white with red or pink eyes, while blue rats and British blue rats have cool gray-blue coats.
Silver fawn is a warm pale color, often with ruby or red eyes.
Color and pattern are cosmetic traits, so they do not tell you much about personality on their own.
Choosing The Right Rat For Your Home
The best choice depends on how much handling you want and how much space you have.
You should also consider whether you are ready for social animals that need daily interaction.
Good rat care starts with matching the animal’s temperament and health needs to your routine.
Temperament, Social Needs, And Why Rats Should Not Live Alone
Pet rats are social, and isolated-rat stress syndrome can develop when a rat lives alone for long periods.
In most homes, pet rats do best in pairs or small same-sex groups so they can groom, sleep, and play together.
A friendly fancy rat or standard rat often adapts well to family life.
Dumbo rats can be just as sociable, and hairless rats can thrive too if you are prepared for extra skin and temperature care.
What To Look For When Adopting From Breeders, Rescues, Or Stores
Look for clear eyes, clean noses, smooth breathing, bright behavior, and a body condition that is not too thin or too heavy.
Ask about age, diet, handling history, and any known rat health issues in the group.
A responsible breeder or rescue can tell you whether the rat has been handled regularly and socialized well.
If you are buying from a store, spend extra time checking health and asking about housing conditions.
Which Varieties Are Easiest For First-Time Owners
For most first-time owners, a standard rat or dumbo rat is a practical choice because these types are common and generally hardy.
A healthy fancy rat from a good breeder or rescue is often easier to start with than a rarer variety.
Hairless rats can be rewarding, yet they usually need more monitoring.
If you want the simplest start, choose a well-socialized rat with a normal coat and a calm temperament.
Care Basics Every Owner Should Know
Strong daily care keeps pet rats active, comfortable, and easier to handle.
The basics include the right cage, safe bedding, a balanced rat diet, and attention to early health changes.
Rat Cages, Ventilation, Bedding, And Cleaning The Cage
Choose roomy rat cages with solid floors, good ventilation, and bar spacing that keeps escape artists safe.
Aspen bedding is a common choice because it is absorbent and generally suitable for rodents when kept clean and dust-controlled.
A clean rat cage reduces odor and stress.
Remove soiled bedding often, spot-clean daily, and do a full cleaning on a regular schedule so waste does not build up.
Rat Diet Basics: Pellets, Fresh Foods, And Obesity Prevention
A good rodent diet usually starts with quality rat pellets or a balanced lab-block style food.
Fresh foods such as vegetables can add variety, while sugary treats should stay limited.
If you have ever wondered what do rats eat, the answer is a mix of balanced staples and carefully chosen extras.
Obesity in pet rats is common when treats and fatty foods pile up, so measure portions and keep treats small.
Common Health Problems And Zoonotic Risks To Know
Watch for sneezing, labored breathing, wet eyes, skin lesions, or sudden changes in appetite. Respiratory disease often affects rats and can involve infections linked to Mycoplasma pulmonis, rat respiratory virus, Sendai virus, pneumonia virus of mice, Filobacterium rodentium, and murine respiratory mycoplasmosis.
Rat bite fever, which is a zoonotic risk, comes from Streptobacillus moniliformis. Ringworm can also spread between animals and people.
Other rat health concerns include Corynebacterium kutscheri. Some cases may need veterinary care such as chronic low-dose doxycycline, depending on the diagnosis.
Venipuncture in mice, lateral tail vein, and gingival vein puncture are lab procedures rather than routine pet care. If your rat seems unwell, contact a veterinarian.
