DUers often use the '100th monkey' myth as a handle by which to grip Hope.
There was no such evidence, and rational people need to realize it.
Please find another method to base one's hope upon.
http://en.wikipedia.org/wiki/100th_Monkey(...)
The original research
In 1985, Elaine Myers re-examined the original published research in “The Hundredth Monkey Revisited” in the journal In Context. In her review she found that the original research reports by the Japan Monkey Center in Vol. 2, 5, and 6 of the journal Primates are insufficient to support Watson’s story. In short, she is suspicious of the existence of “Hundredth Monkey” phenomenon; the published articles describe how the sweet potato washing behavior gradually spread through the monkey troupe and became part of the set of learned behaviors of young monkeys, but she doesn’t agree that it can serve as an evidence for the existence of a critical number at which the idea suddenly spread to other islands.
However, the story as told by Watson and Keyes is popular among New Age authors and personal growth gurus and has become an urban legend and part of New Age mythology. Also, Rupert Sheldrake has cited that a phenomenon like the "Hundredth Monkey Effect" would be an evidence of Morphic fields bringing about non-local effects in consciousness and learning. As a result, the story has also become a favorite target of the Committee for the Scientific Investigation of Claims of the Paranormal and was used as the title essay in The Hundredth Monkey: And Other Paradigms of the Paranormal published by them in 1991.
In his book Why People Believe Weird Things, Michael Shermer explains how the urban legend started, was popularised, and has been discredited.
The effect discredited
An analysis of the appropriate literature by Ron Amundson, published by the Skeptics Society, revealed several key points that demystified the supposed effect.
Unsubstantiated claims that there was a sudden and remarkable increase in the proportion of washers in the first population were exaggerations of a much slower, more mundane effect. Rather than all monkeys mysteriously learning the skill it was noted that it was predominantly younger monkeys that learned the skill from the older monkeys through the usual means of imitation; older monkeys who did not know how to wash tended not to learn. As the older monkeys died and younger monkeys were born the proportion of washers naturally increased. The time span between observations was in the order of years.
Claims that the practice spread suddenly to other isolated populations of monkeys ignore the fact that at least one washing monkey swam to another population and spent about four years there.
It is also to be noted that the sweet potato was not available to the monkeys prior to human intervention: it is not at all surprising that isolated populations of monkeys started to wash potatoes in a similar time frame once they were made available.