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Mixed breed (dog)

Also called mutt, mongrel, crossbreed, Heinz 57 · Worldwide

Canis familiaris

There is no single mixed-breed temperament: each dog's personality reflects its particular ancestry, upbringing and life experience.

14 sources

Crossbreed
Lifespan10–15years

123

Exercise60min

a day

At a glance

Key facts
SizeVaries
Lifespan10 to 15 years123
CoatAny: short, medium, long, wiry, curly, smooth or double coat
OriginWorldwide; mixed-ancestry dogs are found wherever dogs live34
Exercise60 min a day

Ranges cover males and females and every standard linked on the line, so one standard alone may give a narrower range.

truly unique look and personality
adaptable to many lifestyles and homes
can excel in dog sports such as agility and obedience
3456

what they are likeMixed breed (dog) temperament

There is no single mixed-breed temperament: each dog's personality reflects its particular ancestry, upbringing and life experience. Many are adaptable, resourceful and people-friendly, and street dogs in some cities have been noted for learning to handle busy urban life with remarkable ease. Meeting the individual dog, and asking a shelter or rescue about its behaviour, is the best way to know what it will be like.34

how to spot oneMixed breed (dog) coat and colours

any: short, medium, long, wiry, curly, smooth or double coat

Every mixed-breed dog is one of a kind. Body shape, ear set, tail carriage and coat type can come from any of the breeds or types in the dog's family tree, so two mixed-breed dogs rarely look alike. Free-living village and street dogs in many parts of the world tend towards a medium-sized, short-coated, practical build, but household mixes can be anything from tiny and fluffy to large and wiry.34

Comes inany colour or pattern3

a typical week and yearThe care rhythm

A typical home-care rhythm for a Mixed breed (dog). A starting point, not a vet's advice.

  • Brushingevery week
  • Bathevery 8 weeks
  • Nail trimSooner if you hear clicking on the floorevery month
  • Ear checkFloppy ears trap moisture, so check and dry themevery week
  • Teeth brushingDaily brushing is idealevery 2 days
  • ExerciseAbout 60 minutes a dayevery day
  • Flea, tick and worm protectionSchedule as your vet recommendsas your vet recommends
  • Vet check-upSenior years usually start around age 8every year

how busy a day looksMixed breed (dog) exercise needs

Depends on size, age and ancestry: a mix with working or herding breeds in its background usually wants more exercise and mental work than a small companion-type mix. Mixed breeds can compete in agility, obedience, rally, tracking, Fast CAT and flyball, which are great outlets for energetic dogs.5

where they are happiestMixed breed (dog) at home

Mixed-breed dogs live everywhere, from flats to farms. Match the home to the individual: a larger, active mix needs more space and outdoor time, while a small mix can be content in a smaller home with regular walks.34

who they like aroundMixed breed (dog) with people and other pets

Like all domestic dogs, mixed breeds are social animals that do best with daily company, positive training and chances to meet people and other dogs. Village and street dogs often live alongside people as community dogs, showing how closely dogs are tied to human life.4

the hands-on bitsMixed breed (dog) grooming and care

Set by the coat the dog actually has: short smooth coats need an occasional brush, double coats need regular brushing during shedding, and curly or long coats (for example poodle crosses) need frequent brushing and periodic trimming. Nail trims, ear checks and tooth care apply to every dog.37

the things everyone asksOwner questions

How often should I feed my Mixed breed (dog), and at what times?

Feed your adult mixed breed at least two meals a day, ideally at the same times each day. Puppies need three to four smaller meals. Pet Wiki's starting plan is to offer meals at consistent times, and always follow the food label and your vet's advice for amounts.8

What should a Mixed breed (dog) eat, and which foods are dangerous?

Feed a complete, balanced dog food appropriate for your dog's size and age. Dangerous foods include chocolate, grapes, raisins, onions, garlic, xylitol, macadamia nuts, and raw dough. Always avoid these and consult your vet for a safe diet plan.98

How often should I bathe a Mixed breed (dog)?

Pet Wiki's starting plan suggests a bath every 8 weeks, but you can bathe more often if your dog gets very dirty or has skin issues. Use a gentle dog shampoo and avoid over-bathing to keep the coat healthy.10

How often does a Mixed breed (dog) need brushing?

Brush your mixed breed at least once a week, but more often if it has a long or curly coat. Pet Wiki's starting plan is weekly brushing to remove loose hair and prevent mats. Adjust based on your dog's actual coat type.10

How do I trim a Mixed breed (dog)'s nails, and how often?

Trim nails every 4 weeks, or sooner if you hear clicking on the floor. Use a dog nail clipper and cut a little at a time, stopping before the quick. If unsure, ask a vet or groomer for a demonstration.10

How much exercise does a Mixed breed (dog) need?

Pet Wiki's starting plan is about 60 minutes of exercise daily, but this varies by your dog's size, age, and ancestry. Active mixes may need more, while smaller or older dogs may need less. Adjust to your dog's energy level.5

How do I look after a Mixed breed (dog)'s teeth and ears?

Brush your dog's teeth at least twice a week, ideally daily, using dog toothpaste. Check ears weekly for dirt or moisture, especially if floppy, and gently clean with a vet-recommended solution. Never push anything into the ear canal.10

How long does a Mixed breed (dog) live?

Mixed breed dogs typically live around 12 years, though this can vary based on size and health. Smaller dogs often live longer, and good care can help your dog reach a happy old age.312

Is a Mixed breed (dog) good with children and other pets?

Mixed breeds can be wonderful with children and other pets, but it depends on the individual dog's temperament and upbringing. Meeting the dog and asking a shelter about its behavior is the best way to know. Always supervise interactions.34

Can a Mixed breed (dog) be left alone?

Mixed breeds are social animals and do best with daily company. How long they can be left alone varies by the individual dog; some may be fine for a few hours, while others may need more attention. Provide toys and a comfortable space, and consider a pet sitter if you're away long.4

Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.

what to watchMixed breed (dog) health problems

The conditions the breed clubs and health schemes name for the Mixed breed (dog). Most animals of the breed never get them; this is what to ask a breeder or an insurer about.

Ear infections

The most common problem vets see in dogs of all kinds; regular ear checks catch it early. RVC VetCompass: ear canal disease in about 10% of dogs seen at UK vets ↗

Dental disease

Plaque and gum disease build up with age; brushing and dental checks keep it in hand. RVC VetCompass: dental disease in about 9% of dogs ↗

Arthritis

Worn joints in older dogs that cause stiffness; keeping the dog lean helps a lot. RVC VetCompass: arthritis in about 7% of dogs ↗

Being overweight

Extra weight shortens life and worsens joint problems; portion control is the fix. RVC VetCompass: obesity in about 6% of dogs ↗

Inherited conditions from the parent breeds

A crossbreed can still inherit its parents' breed problems, so look up both parent breeds if you know them. RVC VetCompass: crossbreds live about 1.2 years longer on average, but are less likely to get only 3 of the top 20 disorders ↗

From veterinary references; the breed club publishes no health page we could find. Not veterinary advice: for your own animal, ask your vet.

per year, in your countryWhat a Mixed breed (dog) costs

Running costs for a Mixed breed (dog), built from current prices in each country: food scaled to the weight of the breed, insurance to its size, the rest per country. The purchase price and unplanned vet bills come on top.

1,039 GBPa year
1,596 GBPfirst year
Foodabout 91 kg of dry food a year298 GBP ↗
Routine vet care345 GBP ↗
Pet insurancetypical policy, varies by breed and age384 GBP ↗
Dog tax0 GBP ↗
Licence and registration12 GBP ↗
Gear to start531 GBP ↗
Microchip and registration26 GBP ↗
Yearly cost in all 28 countries

Estimates from the sources linked on each line. Food: a complete dry food at about 3,600 kcal/kg at the NRC maintenance energy for the average weight of the breed. Insurance: a typical adult policy scaled by size; real quotes depend on breed, age and cover.

homemade and simpleTreats they will love

All treat recipes for dogs

Not veterinary advice. Check with your vet first if your pet has allergies, a health condition, is on a special diet or is pregnant. Treats should stay a small part of the daily food. Cut to a safe size and supervise. Terms of use

for the dinner tableFun facts

  1. Laika, the first animal to orbit the Earth aboard Sputnik 2 on 3 November 1957, was a small mixed-breed stray found on the streets of Moscow.11

  2. In 2024 Nimble, a Border Collie and Papillon mix, became the first mixed-breed dog to win the Westminster Masters Agility Championship.6

  3. Around three quarters of the world's estimated 700-900 million dogs are free-ranging, and most of these are mixed or landrace dogs.4

  4. Street dogs in Moscow have been reported to ride the metro, and dogs in Bucharest have been seen using pedestrian crossings.4

  5. Mixed-breed dogs have dozens of local nicknames around the world, from 'Heinz 57' and 'bitzer' to 'potcake' in the Bahamas, 'sato' in Puerto Rico and 'vira-lata' in Brazil.3

  6. Hundreds of thousands of mixed-breed dogs have been enrolled in the AKC Canine Partners programme since it opened in 2009-2010, more than 420,000 by its tenth anniversary in 2020.12

  7. The Royal Kennel Club's Scruffts show for crossbreeds has classes such as 'Child's Best Friend' and 'Golden Oldie', and entry money goes to the Kennel Club Charitable Trust.13

for your new friendName ideas

BuddyLuckyCharlieRexBellaMaxDaisyRockySadieCooperMollyJack

told by a Mixed breed (dog)A day in the life

I wake up when the sun peeks through the curtain, and I stretch from nose to tail. First thing, I check the front door, no mail yet, but I wag anyway. Breakfast comes in a bowl, and I eat every bit. Then I follow my human around the house, supervising everything. In the park, I sniff every blade of grass and chase a tennis ball until my tongue hangs out. A squirrel taunts me from a tree, and I give it a friendly bark. Back home, I curl up on the soft rug and dream of tomorrow's adventures.

A made-up story, just for fun. Not advice of any kind.

for a film nightOn screen

Films and series picked by Oskar, who made Pet Wiki.

  • Benji 1974

    A clever small-town stray befriends two children.

    Family movieIMDb
  • The Fox and the Hound 1981

    Copper, a hound puppy, becomes best friends with a young fox.

    AnimatedDramaIMDb
  • Mad About You 1992 · TV series

    Murray, a dim but lovable collie mix, lives with a New York couple.

    ComedyCosy eveningIMDb
  • Balto 1995

    An outcast sled dog sets out to bring medicine to Nome.

    AnimatedAdventureIMDb
  • A Dog's Way Home 2019

    A pit bull mix named Bella travels hundreds of miles to get home.

    AdventureDramaIMDb
  • The Call of the Wild 2020

    Buck, a big pampered dog, is taken north to the Yukon gold rush.

    AdventureFamily movieIMDb
  • Rescued by Ruby 2022

    A state trooper hopes to join the K-9 unit with a hyper shelter dog.

    DramaBased on a true storyIMDb
  • Hachiko (忠犬八公) 2023

    A Chinese family adopts a puppy who meets his owner every day.

    DramaIMDb
  • Arthur the King 2024

    A stray dog joins an adventure racing team in the jungles of the Dominican Republic.

    AdventureBased on a true storyIMDb
  • Superman 2025

    Krypto, an unruly superpowered dog, is looked after by Superman.

    AdventureComedyIMDb

where it all beganMixed breed (dog) history

For most of history almost every dog was what we would now call a mixed breed or landrace; closed, pedigree breeds with written standards are a largely 19th-century invention. Free-ranging village and street dogs, which still make up most of the world's dogs, continue this ancient pattern, and some regional types such as the Indian pariah dog are seen as close to early domestic dogs. In pet homes, mixed breeds have long been common, and deliberate crosses between two breeds (often called designer dogs, such as poodle crosses) became fashionable from the late 20th century. Kennel clubs have increasingly welcomed them: The Royal Kennel Club started the Scruffts crossbreed show in 2000, the AKC opened its sports to mixed breeds through Canine Partners in 2009-2010, and Westminster opened its agility championship to them in 2014. DNA breed tests now let owners explore their dog's ancestry, although the AKC does not accept them as proof of breed.3413146

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the official bitsRecognised by

AKC
Not a breed and not eligible for conformation shows, but mixed-breed dogs can enrol in the AKC Canine Partners programme (announced 14 April 2009, enrolment from 1 October 2009, competition from 1 April 2010) and earn titles in agility, obedience, rally, tracking, Fast CAT coursing and the Canine Good Citizen programme. AKC reports over 1 million dogs enrolled since 2009.145
The Royal Kennel Club
Runs Scruffts, a national show for crossbreed dogs started in 2000 and judged on character and temperament rather than a breed standard; since 2013 the final has been held at Crufts in Birmingham.13
Westminster Kennel Club
Mixed-breed dogs have been allowed to enter the Masters Agility Championship since it began in 2014.6

Popularity 42% of dogs in the Dogs Trust 2024 National Dog Survey (UK) were crossbreeds, with nearly 10% being mixes of unknown breeds7

How many Estimated 150 million mixed-breed dogs worldwide (no year given); separately, about 75% of an estimated 700-900 million dogs worldwide are free-ranging34

Sources (14)

Every fact on this page has a numbered source. Spotted an error? [email protected].

  1. Phys.org: Study finds small, long-nosed dogs live the longest (2024) phys.orgused for crossbreed median lifespan
  2. Liverpool John Moores University: Dog longevity (2024) ljmu.ac.ukused for study size, overall median lifespan
  3. Wikipedia: Mongrel en.wikipedia.orgused for names, definitions, population estimate, lifespan studies, DNA tests
  4. Wikipedia: Free-ranging dog en.wikipedia.orgused for world dog population, village dogs, street dog behaviour
  5. AKC: Does the AKC Accept Mixed-Breed Dogs? akc.orgused for eligible sports, enrolment numbers
  6. NPR: Nimble becomes first mixed-breed dog to win Westminster agility title npr.orgused for recognition, fun fact
  7. Dogs Trust National Dog Survey 2024 dogstrust.org.ukused for UK crossbreed share, common crossbreeds
  8. VCA Animal Hospitals: Feeding times and frequency for your dog vcahospitals.comused for owner questions
  9. ASPCA: People foods to avoid feeding your pets aspca.orgused for owner questions
  10. ASPCA: Dog grooming tips aspca.orgused for owner questions
  11. Wikipedia: Laika en.wikipedia.orgused for fun fact
  12. prnewswire.com prnewswire.com
  13. Wikipedia: Scruffts en.wikipedia.orgused for Royal Kennel Club crossbreed show
  14. AKC press release: AKC Announces New Program for Mixed Breeds (2009) akc.orgused for recognition, history

Text is written in our own words from these sources.