Life Lines by Dr. Dolittle

Sponsored by the American Physiological Society

Longevity of dogs

Comparative Mastehead 2018

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Image of dogs by Raniel Diaz via Flickr Creative Commons

Dogs are weird when it comes to predicting longevity based on body size. For many species, small body size means higher metabolic rate and shorter lifespan. For dogs, smaller body size = longer lifespan. Dr. Ana Jimenez (Colgate University) presented research at the Comparative Physiology meeting this weekend showing that larger dogs do indeed develop more DNA damage with aging than smaller dogs.

Categories: Comparative Physiology

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