Small dogs live longer than bigger breeds because they are prone to less severe ailments, according to research.
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The larger pets face cancer, bone-related diseases, gastrointestinal problems, neurological and endocrine issues.
But scientists from the Washington University in Missouri – analysing 25,000 canines from 238 breeds – found smaller dogs more likely to have ocular, cardiac and respiratory problems.
Lead author Yunbi Nam explained: “The findings could lead to an understanding of conditions that may underlie lower lifespans.”
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