That 'hundredth monkey' phenomenon is made up. "The "Hundredth Monkey Effect" is a supposed phenomenon in which a learned behaviour spreads instantaneously from one group of monkeys to all related monkeys once a critical number was reached. The story behind this supposed phenomenon originated with Lyall Watson, who claimed that it was the observation of Japanese scientists. Such an observation did not actually exist (e.g. Myers 1985, Amundsen 1985, 1991)."