The Dog Aging Project, founded in 2018, is by far the most ambitious project tackling the question of canine longevity, enrolling and studying tens of thousands of dogs of all sizes, breeds and backgrounds to develop a thorough understanding of canine aging. Their open-source dataset will give veterinarians and scientists the tools to assess how well a specific dog is aging and will set the stage for further research into healthy aging — in both dogs and people. One of their most intriguing avenues of inquiry will analyze the DNA of exceptionally long-lived dogs, the ‘super-centenarians’ of the dog world.