Fish evolve a longer lifespan by evolving a longer period during which they reproduce

A UC Riverside-led research team has found that as some populations of an organism evolve a longer lifespan, they do so by increasing only that segment of the lifespan that contributes to “fitness” – the relative ability of an individual to contribute offspring to the next generation.

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<p><a href="http://www.physorg.com/news9497.html">Fish evolve a longer lifespan by evolving a longer period during which they reproduce</a></p> <p>A UC Riverside-led research team has found that as some populations of an organism evolve a longer lifespan, they do so by increasing only that segment of the lifespan that contributes to “fitness” – the relative ability of an individual to contribute offspring to the next generation. </p>