On average, one year of a dog's lifespan is equivalent to five human years. The first year is equivalent to a human being of eighteen years old, and then it increases by about four years every year. A twenty-year-old dog is equivalent to A dog's lifespan is generally about twelve years compared to a human's 100 years old, which is equivalent to a human's sixties, and its entry into old age begins at the age of eight.

Tips:

In order to make dogs live longer, parents should feed them scientifically when raising them, and do not give them too many snacks. Make sure you get enough exercise and sunshine every day, and seek timely treatment if you are sick.