What is the life span of a Newfoundland dog?

The usual lifespan of a Newfoundland dog is 8-10 years. Mainly because they are large dogs and end up hve heart or joint problems.

Larger breeds also have higher rates of osteosarcoma, an aggressive bone cancer that metastasizes rapidly. Newfies can be screened for sub-aorta problems, joint problems can be reduced if they are kept trim. Do NOT overfeed your Newfies, no matter how much they give you that look.