The Wire Fox Terrier (also known as Wire Hair Fox Terrier or Wirehaired Terrier) bears a resemblance to the Smooth Fox Terrier, but they are believed to have been developed separately. Two of the Wire Fox Terrier's most distinctive traits are its energy and intelligence. It has a low threshold for boredom and requires stimulation, exercise and attention. The Wire Fox Terrier is a companion animal that requires near-constant attention. These dogs are alert, quick and ready to respond swiftly with enthusiasm. They are also friendly, communicative and playful.