John K. Clark wrote,
>Hence the speculation about the downside of the genetically engineered
>Methuselah mice, speculation that p66 must somehow increase the fertility rates
>of young mice.
Hence also, my erroneous speculation that the slower rate of species evolution of Methuselah mice (due to decreased fertility rates _and_ to decreased generational frequency) would render a biological disadvantage. --J. R.
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