Scooby-Doo, the animated cartoon franchise that started in 1969, is named after a talkative, crime-solving Great Dane. It has spun off numerous series.

The latest, “Scooby-Doo and Guess Who,” premiered on June 27, 2019. That's a 50-plus year run for a dog breed that has a life span of just eight to 10 years.

In dog years (it’s said that one human year equals seven dog years), that means Scooby is 350!

But hold the phone — or the Scooby snack — for just one minute.

Researchers at the University of California, San Diego, think we've been underestimating dogs' ages, and by their new calculations Scooby would be 375.

Their theory is based on looking at developmental stages (like when baby teeth come in) and use the age in humans and dogs that it happens as the basis for their age-equivalent calculation.

To help your best friend reach the most dog years possible, it's smart to steer clear of risky trends (like raw meats for dogs) and make sure your pet gets the nutrients and exercise needed to thrive.

The American Kennel Club suggests that you check out the Merck Veterinary Manual for information on recommended nutrients, along with the recommended amount by weight and age.

And check out a book Dr. Mike helped develop: “DogAge: How Young Is Your Dog?” by veterinarian Dr. Dondi S. Dahlgaard. Then you'll be barking up the right tree.