Pets age much faster than people do, and their rate of aging depends not only on the species type but also on the size of the breed. Cats are generally less than 10kg and are considered senior citizens after the age of 8. Dog breeds, however, display a wide variety of weights. The greater the weight of the breed, the sooner they reach their golden years.
Tiny (<10kg) dogs are considered seniors once over the age of 8
Small (10-25kg) dogs, dogs are considered seniors once over the age of 7
Medium (25-40kg) dogs, dogs are considered seniors once over the age of 6
Large (>40kg) dogs, dogs are considered seniors once over the age of 5
