There are several different genetic disorders which can be known to shorten a dog's lifespan. The commonest is canine degenerative myelopathy, that is a progressive neurological condition that has an effect on the spinal cord. Cross and Mix breeds are likely to live for a longer period than purebreds, as https://chanceoomjg.pages10.com/the-best-side-of-canine-age-chart-69238721