Whatâ??s life for? That question stirred as I contemplated two rhesus monkeys, Canto, aged 27, and Owen, aged 29, whose photographs appeared last week in The New York Times.
The monkeys are part of a protracted experiment in aging being conducted by a University of Wisconsin team. Canto gets a restricted diet with 30 percent fewer calories than usual while Owen gets to eat whatever the heck he pleases.