Common wisdom has long held that each dog year is equivalent to seven human years. But a new equation developed to measure how a dog ages finds the family pup may be a lot older than we realize.

When it comes to calculating a dog’s age, most go by the well-known formula that "one dog year equals seven human years" – however the truth is, this isn’t accurate. It's not as simple as a one-size ...

Want to know how old your dog is in human years? A new study states that calculating every dog year isn't equal to 7 human years. That's because your dog ages differently than you. Researchers at the ...