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.
One thing to take into consideration is that some dogs simply can’t handly the heat.
These breeds will quickly tire – and even become ill – if they are exposed to hight temperatures for an extended period of time, so won’t thank you for long walks in the sun and don’t enjoy living in warmer climes.
Here are the 12 breeds of dog that hate the heat.
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5. Bulldog
Breeds of dogs that have flat faces are referred to as being brachycephalic and the Bulldog falls into this category. They have narrow nostrils and airways meaning they can find it hard to breathe properly when they get too hot - so overheat further. If it's hot outside, skip taking that extra walk with your Bulldog. | AFP via Getty Images

6. French Bulldog
Just like its cousin from across the Channel, the French Bulldog finds it hard to breathe in hot weather. Combined with their love of rushing around while out and about, it means walks in the sun can be a disaster. Take them out for their daily outing early ihe morning or in the evening instead. | Getty Images for Westminster Ken

7. Akita Inu
Bred to survive extreme temperatures in the snowy Japanese mountains where they were developed, the Akita Inu has a thick coat that is designed to keep heat in. They should be kept in the shade whenever possible. | POOL/AFP via Getty Images
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8. Shih Tzu
Shih Tzus possess both shortened airways and a dense coat. These factors make heat regulation difficult, especially during humid weather when panting becomes less effective. | AFP via Getty Images
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