Monkeys Demand Equal Pay 12:27 p.m. EDT September 17, 2003 A fair shake is a fair shake -- whether you're a human or a monkey. A recent study shows brown capuchin monkeys refused to play along when they saw another monkey get a better payoff for performing the same work. The monkeys were trained to trade a granite token for a piece of cucumber. When the reward was the same for both monkeys, they took the cucumber 95 percent of the time. But it was a different story when one monkey was given something better -- namely, a grape. Then,...