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Dog aging is irrelevant. It's well-documented that dogs have a faster biological aging process due at least in part to the telomere caps on chromosomes which protect the DNA. Dogs lose these caps at a rate around ten times the human rate.

https://www.sciencedirect.com/science/article/pii/S221112471...

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I remember seeing discourse recently saying telomere shortening is a side effect more than a cause of aging as a function and happens as a function of DNA damage. Important to consider

Sure, but it also has some correlation to body size. Larger animals generally live longer.

Then why do large-breed dogs die around 8 years of age when small-breed dogs can live to twice that easy?

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