The concept of the grandmother hypothesis suggests that human longevity compared to other primates and large mammals may have evolved due to the role of grandmothers in enhancing the reproductive success of their daughters’ offspring. This theory implies that the presence of grandmothers creates a selection pressure for increased survival into later life, allowing for the evolution of frail elders. Similar patterns can be observed in killer whales, indicating a broader evolutionary process at work. Research discusses how extended maternal care influences species’ lifespans, with a focus on the maternal survival and fitness of offspring. By developing mathematical models and empirical data, scientists aim to understand how maternal care impacts the evolution of lifespan in various species. This research expands on the Mother and Grandmother hypothesis, highlighting the significance of maternal presence in shaping offspring fitness and survival. Studies on baboons and other primates have revealed the detrimental effects of maternal absence post-weaning, underscoring the intergenerational impact of maternal care on evolutionary outcomes. The findings provide valuable insights into the evolution of longer lives in mammals, emphasizing the importance of maternal influence on species’ longevity.
For more information, you can visit: Mothers’ Care: A Central Factor in Animal and Human Longevity
