Pomeranian, 12-16 years
Believe it or not, in the 16th century the Pomeranian was bred as a large sled dog and is descended from other large breeds such as the Samoyed and Alaskan Malamute. Some say this explains their big-dog attitude.
Pomeranians are easily trained and active but, because they’re so small, don’t require all that much space for exercise. Pomeranians may be cute and cuddly but don’t be fooled—they’re feisty and independent as well. After 12-16 years with them, you’ll see.