Dogs · Matters.com — Why big dogs age faster — and what vets can do
Digest Newsletter
·
Oct 30, 2026
Dogs · Matters.com — Why big dogs age faster — and what vets can do
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Scientists pinpoint an epigenetic clock linked to big-dog aging
A new study mapped an epigenetic signature that helps explain why larger breeds tend to die younger. Researchers found molecular changes tied to growth that also accelerate biological aging, meaning size isn’t just about legs and lunch portions — it’s built into the clock. For owners and vets this is a big step toward targeted aging interventions and better breed-specific care rather than one-size-fits-all recommendations.
Shortened heartworm protocol works
A randomized trial reports a compressed melarsomine schedule was about 95% effective at clearing heartworms in dogs, which could mean fewer clinic visits and faster recovery — read the full trial here.
Boarding rules after a viral death
California lawmakers proposed stricter regulation for pet boarding facilities after a dog’s widely shared death put spotlight on oversight and safety; the bill targets negligence and could change what owners expect from kennels — more details here.
Petting your dog actually helps
A new study found that touching your dog can buffer you against an upcoming stressful task, suggesting a quick pat is more than comfort — it’s stress weatherproofing; read the research summary here.
Dogs’ super noses
Dogs have up to about 300 million olfactory receptors (humans have ~6 million), and the part of their brain devoted to smell is proportionally much larger — which is why one sniff can tell them more about your sandwich than you can.