A morbidly obese wild monkey who gorged himself on junk food and soda left behind by tourists has been rescued and placed on a strict diet of lean protein, fruits and vegetables. Wildlife officials ...

WASHINGTON—Eat less, live longer? It seems to work for monkeys: A 20-year study found cutting calories by almost a third slowed their aging and fended off death. This is not about a quick diet to shed ...

A long-term study of monkeys’ diets is providing new insight into how the brain ages. Researchers from Boston University, in collaboration with the National Institute on Aging, followed a group of ...