ScienceLarge dogs age faster than small dogs at the molecular level
The link between size and lifespan is pronounced in dogs: large breeds such as Great Danes typically die younger than small breeds such as Chihuahuas. A new study suggests age-related changes in dogs’ DNA may help explain why.
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Reuters★★☆☆☆2026-10-14 09:10Original
Large dogs age faster than small dogs at the molecular level
Science