Bred for its sweet temperament, the Lucas Terrier is a breed of small, sturdy, working-terrier like dogs produced as a result of a cross between an existing Lucas Terrier and a small Sealyham Terrier or a Norfolk Terrier.The Lucas Terriers physical attributes include a broad skull, deep muzzle, black nose, dark, almond-shaped eyes, medium-sized, V-shaped ears, strong neck, broad shoulder ...