"Natural selection favors animals that are most likely to become reproductively successful by developing better survival strategies and greater reserve capacity in vital systems to better escape predation, disease, accidents, and environmental extremes. Natural selection diminishes after reproductive success because the species will not benefit from members favored for greater longevity. The level of physiological reserve remaining after reproductive maturity determines longevity and evolves incidental to the selection process that acts on earlier developmental events. Physiological reserve does not renew at the same rate that it incurs losses because molecular disorder increases at a rate greater than the capacity for repair. These are age changes, and they increase vulnerability to predation, accidents, or disease."
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Academics from the United StatesEducators from the United StatesPeople from PhiladelphiaBiologists from the United StatesStanford University faculty
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Leonard Hayflick
Leonard Hayflick (May 20, 1928 – August 1, 2024) was a professor of anatomy at the UCSF School of Medicine and was a professor of medical microbiology at Stanford University School of Medicine. He is known for the Hayflick limit and won more than 25 major awards.
4 quotes on TrueQuotesView all quotes by Leonard Hayflick →
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