The average lifespan of a Norwich Terrier is between 12 and 14 years.
The life span of a Scottish Terrier is 11 to 13 years.
Foxes usually live for 10 years or so but can live for around 20 years.
I have both, I think they have the same temperament, even though I find my Norwich male to be the most affectionate dog I have ever owned.
Norwich terriers are only brown (or have a brown stripe down their back) and have thick wire hair. Cairn Terrier fur is light brown and can have a little black--usually around ears and nose/beard (others are all black), and is much softer and not as dense as a norwich terrier.
They're expensive!! When buying a Norwich always make sure it's AKC registered, otherwise you may not be getting a full blooded Norwich... they only have around 2 pups per litter so they are more rare. The cost is usually between $1500-$3000.
The life span of an Australian Terrier is 12 - 14 years.
The life span of a Standard Manchester Terrier is 15 - 16 years.
The life span of a Toy Fox Terrier is 13 - 14 years.
The life span of a Glen of Imaal Terrier is 10 - 14 years.
The average life span of a Yorkie Terrier is around 12 to 15 years.
The life span of a Scottish Terrier is 11 to 13 years.
The life span of a Bedlington Terrier is 12 - 14 years.
The average max. life expectancy of a Cesky Terrier is 14 years.
Foxes usually live for 10 years or so but can live for around 20 years.
The Rat Terrier life expectancy is about 25 years. The average Rat Terrier life span is about 15 - 18 years.You can also increase life span of terrier by giving proper and healthy natural dog food. Know better pet food provides information and products about dog, dogs health and their diet
source: http://www.dogandcollar.com/breed-profiles/scottish-terrier.htm
for hunting small animals