Science, Space and Technology News 2024
A Cornell University study explores the role of maternal care in the evolution of long lifespans in humans and other mammals. Research by Matthew Zipple indicates that species where offspring rely on prolonged maternal care tend to live longer and reproduce less frequently.
The relationship between mother and child may offer clues to the mystery of why humans live longer than expected for their size – and shed new light on what it means to be human – according to a new The work builds off the Mother and Grandmother hypothesis, based on observations in 18th- and 19th-century human populations, that offspring are more likely to survive if their mothers and grandmothers are in their lives. This theory has been used primarily as an explanation for menopause in humans, Zipple said – as ceasing reproduction decreases the risk of death and allows older females to focus on grand-offspring care.
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