Why do big dogs live shorter lives? Study points to faster DNA ageing
Across mammals, bigger species like elephants usually live longer lives than smaller ones like mice, but within a species that pattern can reverse
Few animals show the link between size and lifespan as clearly as dogs. Within this one species, large breeds such as Great Danes typically die younger than small ones such as Chihuahuas. A new study indicates the reason may lie in how DNA changes wi... [4210 chars]
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- Science
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- Telegraph India
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- Wednesday, 14 October 2026, 5:18 pm IST
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