A recent analysis of veterinary records revealed that dogs under 20 pounds had an average lifespan of 11 years while those over 90 pounds typically lived for only 8 years. Medium and large dogs fell in the middle at around 11 years.
Is a 20 pound dog big?
Medium and large weight distinctions
On the heavy end, Hills Pet defines small dogs as 20 pounds or less, and dogs over 60 pounds Dogs weighing around 20 pounds or less are generally considered small, and any breed over 60 pounds is usually considered a large dog.
Which dog has the shortest lifespan?
Top 10 Dog Breeds With The Shortest Lifespan
- Saint Bernard: 8-10 years.
- Newfoundland: 8-10 years.
- Bullmastiff: 7-8 years.
- Great Dane: 7-8 years.
- Greater Swiss Mountain Dog: 6-8 years.
- Mastiff: 6-8 years.
- Irish Wolfhound: 6-7 years.
- Bernese Mountain Dog: 5-7 years.