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St. Paul, Minn.

What science can reveal about aging

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Rhesus monkeys at University of Wisconsin-Madison
Rhesus monkeys, left to right, Canto, 27, on a restricted diet, and Owen, 29, a control subject on an unrestricted diet, are pictured at the Wisconsin National Primate Research Center at the University of Wisconsin-Madison on May 28, 2009. The two are among the oldest surviving subjects in a pioneering long-term study of the links between diet and aging in Rhesus macaque monkeys, which have an average life span of about 27 years in captivity.
courtesy of Jeff Miller/University of Wisconsin-Madison
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Rhesus monkeys at University of Wisconsin-Madison
Rhesus monkeys, left to right, Canto, 27, on a restricted diet, and Owen, 29, a control subject on an unrestricted diet, are pictured at the Wisconsin National Primate Research Center at the University of Wisconsin-Madison on May 28, 2009. The two are among the oldest surviving subjects in a pioneering long-term study of the links between diet and aging in Rhesus macaque monkeys, which have an average life span of about 27 years in captivity.
courtesy of Jeff Miller/University of Wisconsin-Madison