Diamond suggests one advantage that progressed through the evolutionary tree, is longevity. We will discuss the reasons for longevity in the evolvement of the human species. Diamond addresses through chapter seven, how aging and menopause are strongly connected to longevity. Men and women have been tested in various different ways to solve the mystery behind the theory that reproduction is the cause of post-generative longevity. Another benefit Diamond writes about is how technology is a big step toward progressing how lives much further then it was one hundred thousand years ago. The one theory written progressively is one of Charles Darwin’s ‘Theory of Natural Selection’ which is one of the theories much argued about today. These topics, as well as being spoken about in Diamond’s book, are heavily argued about whether the theories are believable to endure human longevity to an increased size.
In menopause, there are two different hypotheses to state post generative longevity; these are the ‘Stopping-Early Hypothesis’ and ‘The Grandmother Hypothesis’. The ‘Stopping-Early Hypothesis’ states, since human infants are too young to live without protection or motherly aspects,’…it is beneficial for women to cease reproduction at the age at which the risk of maternal death reaches a certain threshold. In contrast, ‘The Grandmother Hypothesis’ states that survival long past the age of menopause have been selected for because grandmothers significantly improve grand offspring survival probabilities.’ (J. Beise) These two hypotheses have biological origins but have social implications; they are both tested for evolution of menopause and the evolution of post-generative longevity. Menopause and post-generative longevity are artefacts of modern life that were not present for most human evolutionary history, and are in accordance
Bibliography: Oxford Science Publications. 1989. Human Origins. New York: Oxford University Press Zimmer, C Diamond, J. 2002. The rise and fall of the third chimpanzee. London: Vintage Internet Sites