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Reduced Life Span of Large Dogs

11/01/17 By
MSD Veterinary Manual

A new study on large and small breed dogs may explain why larger breeds generally have shorter life spans. It may be that rapid growth as puppies leads to overproduction of oxygen free radicals, which can have long-term effects and result in premature aging.

Read more on the new hypothesis for theshorter life span of large dogs in Science.

Learn more about the physiology of dogs in the MSD Veterinary Manual.