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Features November 2017 Issue

Why Little Dogs Live Longer

Within a species, smaller animals tend to live longer. Itís not so noticeable in people because the tallest people arenít many times larger than the shortest ones, as is the case with dogs.

Why Little Dogs Live Longer

Decoding the reasons that as dog size goes up, lifespan goes down.

Why is it that between species, the larger the mammal, the longer it lives (elephants go to about age 60, horses till 25 or 30, dogs up to a range of between 10 to 13, and mice to 2), but within any given species, larger animals die sooner? (A Great Dane might make it to age 8, while some Chihuahuas live to 18.)

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