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Some animals age very, very little: https://en.wikipedia.org/wiki/Negligible_senescence

Among them the Naked Mole Rat, a mammal.

So it looks like evolution can do it. But it usually doesn't.



In some animals old age has a reproductive advantage. As for turtles and some fishes: Old age => Bigger => less predators + more eggs

For these species most of the new born are babies of very old females.




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