It is a beloved breed, featuring in everything from Radley handbags to a Monopoly piece, but the future of the Scottish Terrier looks bleak.
The Kennel Club has warned that "Scottie dogs" are falling out of fashion in favour of other breeds.
The breed is now on an official "watch list" compiled by the dog welfare organisation, after puppy registrations last year fell 12 below the 450 threshold.
As other breeds soar in popularity, the number of registered has declined by 38 per cent in the past five years, according to new figures released by the Kennel Club.
British dog breeds are not as in demand as they were in the past, and of the 57 native breeds, 29 are now deemed "vulnerable", with nine more at watch, and The Kennel Club has launched a "Save British Dog Breeds"campaign to reverse the decline.
Those now classed as vulnerable, meaning they have fewer than 300 new registrations in a year, include the bearded collie and the Irish wolfhound.
Instead, other breeds such as the French Bulldog, which is now the UK's most popular dog, are in fashion.
Kennel Club secretary Caroline Kisko said: "There were just 24 vulnerable breeds and seven at watch a decade ago.
"There are now another six breeds either vulnerable or at watch and we could lose even more of our most iconic and historic native dog breeds if people don't look beyond the most obvious choices - such as the increasingly popular French Bulldog - and start to explore the huge diversity of breeds we're lucky enough to have in this country."
Til Tovey, secretary of the Scottish Terrier Club of England, added: "It is so sad to see this wonderful and well-recognised breed, which is affectionate, loyal and intelligent, steadily decline in popularity as more fashionable choices take over.
"The Scottish Terrier is a great breed for those who want a small companion dog with plenty of character and an independent streak, and have time to train them consistently.
"Scotties are brimming with personality so sometimes can be a little stubborn!
"It would be very sad to no longer see this historic and much-loved breed in our streets and parks in a few generations' time."
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