The average dog lives for about 15 years.
Some dogs show signs of age at six years old, while others remain active and youthful until they are ten or more.
The oldest dog on record was a Labrador who died in 1963, at the age of 27 years and three months. However, some people have claimed that their dogs lived longer than that.
A veterinarian operating on a dog once found 267 marbles in the dog’s stomach.