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New Longevity Theory: Scientists Claim Maternal Care is Key to Longer Life
A new evolutionary theory posits that the longevity of the human species, as well as other mammals like whales and elephants, may partially stem from a fundamental connection—prolonged maternal care for offspring.
TL;DR
- A new evolutionary theory suggests that extended maternal care may explain the long lifespans of humans, whales, and elephants.
- This theory posits that natural selection favors longer-living mothers, influencing the evolution of longer lifespans within a species.
- Species with high offspring dependency on mothers show a trend towards longer lifespans and slower reproduction rates.
- While the 'grandmother hypothesis' applies to a few species, this new theory focuses on the broader impact of maternal care.
- The human context is complex, with factors like pregnancy's effect on aging and socio-economic conditions influencing longevity.
- Maternal influence on offspring survival and reproduction is generally stronger than paternal influence in studied species.