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 which ranks breeds by instincts, obedience, and the ability to adapt.
Meanwhile, certain breeds have particular attributes or temperaments which mean that they are less suitable for households with small children.
Here are the 12 breeds of dog that aren’t suitable for young families.
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9. Chihuahua
They may be small, but Chihuahuas can be fairly aggressive if their personal space is invaded and are liable to snap - a recipe for disaster for curious toddlers. | Getty Images
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10. Alaskan Malamute
Alaskan Malamutes are a great choice for people who like taking plenty of exercise with their pets, but they get bored easily and then have a tendancy to play rough. They are also very possessive over their food, which is something a young child may find hard to understand. | Getty Images
11. Shar-Pei
Seemingly designed to be cuddled, the Shar-Pei needs its own space and has an independent streak a mile long. If children don't respect its personal boundaries these dogs are likely to become pretty grumpy. | AFP via Getty Images
12. Siberian Husky
The Husky is a dog that likes to play rough - particularly when they've not had any exercise for a while - and, although it's unlikely there will be any malice involved, this can prove to be a problem when they are left alone with youngsters. | AFP via Getty Images