Paul Getty wrote on 8/22:

>Many animals, like some parrots, live longer being fed a diet that they
>would not have eaten in nature.  To say that there can be no improvement
>over the diet in nature is just a theory in the case of man.

Very interesting about the parrots. I wasn't aware of any such example
other than studies on caloric restriction. How's it known that diet is the
critical factor in living longer and not something else like reduced
disease or predation?

What other examples do you know?

Gary