Breed of terrier developed in the late 19th century by Capt. John Edwardes for hunting foxes, otters, and badgers on his Welsh estate, Sealyham. A small, short-legged, sturdy dog, it was bred for courage, stamina, and hunting ability. It has a double coat, soft underneath and wiry on top, and may be solid white or white with darker markings on its head and drooping ears. It stands about 10 in. (25.5 cm) and weighs about 20 lbs (9 kg).
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With the advent of dog shows, the Sealyham became a popular showdog. Today it is primarily a companion dog, and not used for hunting.
The first Sealyham Terrier club was created in 1908 and the breed was officially recognised in 1910. The Sealyham Terrier now is recognised by all of the major kennel clubs in the English-speaking world. The Sealyham was once one of the more popular terriers and one of the best known Welsh breeds. Today, however, The Kennel Club (UK) lists the Sealyham as amongst the most endangered native breeds.
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