Senescence Is More Important in the Natural Lives of Long- Than Short-Lived Mammals

Abstract excerpt

BACKGROUND: Senescence has been widely detected among mammals, but its importance to fitness in wild populations remains controversial. According to evolutionary theories, senescence occurs at an age when selection is relatively weak, which in mammals can be predicted by adult survival rates. However, a recent analysis of senescence rates found more age-dependent mortalities in natural populations of longer lived...

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