Large mammal species live harder, die out faster

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Researchers have discovered that small mammals such as those similar to this dormouse tend to survive longer as a species while larger mammals tend to die out andor evolve faster. Image: H. Osadnik.
Researchers have discovered that small mammals, such as those similar to this dormouse, tend to survive longer as a species, while larger mammals tend to die out and/or evolve faster. Image: H. Osadnik.

Throughout Earth’s history, species have come and gone, being replaced by new ones that are better able to cope with life’s challenges. But some species last longer than others, while others may die out sooner or evolve more quickly.


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