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Dogs come in all shapes and sizes - the UK Kennel Club recognises 221 different pedigree dogs, from Affenpinscher to Yorkshire Terrier (there are sadly no dog breeds starting with the letter ‘z’!).
Then there are all manner of crossbreeds, from so-called ‘designer dogs’ to lovable mongrels.
Each has its own list of positive and negative attributes, and it’s important to take plenty of time to think about what breed will fit into your lifestyle the best - for instance a smaller dog if you live in a flat, or a hypoallergenic dog if the mere mention of dog hair makes you think about sneezing.
There is even scientific research to guide you, in particular psychologist Stanley Coren’s groundbreaking book The Intelligence of Dogs.
Different breeds of dog also tend to have very different personalities – with some dogs happy to get on with pretty much anybody.
Others form a particularly strong bond with their owner and family that is non-transferable and will last for life.
Here are the 12 most loyal breeds of dog,
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5. Dachshund
Despite their small size - and occasional naughty behaviour - Dachshunds are remarkably devoted. They often attach strongly to one person, following them closely and displaying steadfast affection and surprising bravery if their favourite is threatened. | Canva/Getty Images
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6. Boxer
The Boxer is naturally protective of its family, forming a non-transferable bond that is unbreakable. They are also very patient with children and show little in the way of aggression. | Canva/Getty Images
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7. Collie
One of the most famous dogs of the screen was Lassie, a loyal Collie that would do anything for its family. It's certainly not fictional to call this breed of loyal - they love their families unquestioningly. | Canva/Getty Images
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8. Labrador Retriever
Affectionate and outgoing Labrador Retrievers are hugely loyal to their families although, unlike some of the dogs on this list, with also get on well with most other humans and dogs. | Canva/Getty Images