Contrary to popular belief, dog years are not $age \times 7$ . It's actually more like:

As you can see, they age very quickly at first and then very slowly (relative to humans). A 1-year-old dog is an adult, close to a 30-year-old human. At 16 years of age a dog is close to an 80-year-old human.

This post is brought to you by my love of dogs and my love of logarithms.