1. Great Dane: Despite their large size, Great Danes have a relatively short lifespan, typically ranging from 6 to 8 years.
2. Saint Bernard: Saint Bernards are gentle giants known for their loyalty and affection, but their lifespan is often around 8 to 10 years.
3. Irish Wolfhound: Irish Wolfhounds are one of the tallest dog breeds and typically have a lifespan of around 6 to 8 years.
4. Mastiff: Mastiffs are known for their massive size and protective nature, but they often have a lifespan of around 6 to 10 years.
5. Boxer: Boxers are energetic and playful dogs, but their lifespan is typically around 9 to 12 years.
6. Bulldog: Bulldogs are known for their distinctive appearance and loving temperament, but their lifespan is often around 8 to 10 years.
7. Bernese Mountain Dog: Bernese Mountain Dogs are gentle giants with a loving disposition, but their lifespan is typically around 7 to 10 years.
8. Cavalier King Charles Spaniel: Cavalier King Charles Spaniels are small and affectionate dogs, but they often have a lifespan of around 9 to 14 years