(How) It's written in your DNA

A recent paper from the Mammalian Methylation Consortium revealed that epigenetic (methylation-based models) accurately predict maximum lifespan, gestational time, and age at sexual maturity in mammals.

The author also focused on the dog species: Across dog breeds, epigenetic maximum lifespan correlates positively with breed lifespan but negatively with breed size.

These results confirm previous research and well-known life situation: smaller dogs live longer!