Dogs and humans are more alike than we thought, study finds

Photo credit: Eric Ward via Unsplash. Article by Camryn Haines, Texas A&M University. Phys.org – June 13, 2026. Research article: The Journals of Gerontology.

The same biological signals that help predict lifespan in humans also appear in dogs, according to new research from the Dog Aging Project—a finding that could help scientists better understand aging in both species. In a study recently published in The Journals of Gerontology, researchers found that patterns of metabolites—small chemicals and molecules produced during normal bodily processes—were associated with earlier or later death in dogs in much the same way they have been shown in humans. […]

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