In 2013, a study found that mixed breeds live on average 1.2 years longer than pure breeds, and that increasing body-weight was negatively correlated with longevity (i.e. the heavier the dog the shorter its lifespan).
In 2013 , a study found that mixed breeds live on average 1.2 years longer than pure breeds , and that increasing body - weight was negatively correlated with longevity ( i.e. the heavier the dog the shorter its lifespan ) .
Do bigger dogs typically have longer or shorter lives?
Do bigger dogs typically have longer or shorter lives ?
shorter
shorter