The brilliant 19th-century creation of sportsman Captain John Edwardes, the Sealyham Terrier possesses more courage per square inch than any other terrier in the world. A walking, barking contradiction, this dignified, elegant companion, cloaked in white with smart markings, is a fearless, territorial working dog. Although the Sealyham Terrier only stands over limited ground, given his small size, he's capable of guarding entire estates for his well-protected...