Fitness benefits of prolonged post-reproductive lifespan in women

  title={Fitness benefits of prolonged post-reproductive lifespan in women},
  author={Mirkka Lahdenper{\"a} and Virpi Lummaa and Samuli Helle and Marc Adélard Tremblay and Andrew F Russell},
Most animals reproduce until they die, but in humans, females can survive long after ceasing reproduction. In theory, a prolonged post-reproductive lifespan will evolve when females can gain greater fitness by increasing the success of their offspring than by continuing to breed themselves. Although reproductive success is known to decline in old age, it is unknown whether women gain fitness by prolonging lifespan post-reproduction. Using complete multi-generational demographic records, we show… 

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