http://www.zmescience.com/research/how-scientists-tught-monkeys-the-concept-of-money-not-long-after-the-first-prostitute-monkey-appeared/#!D9bSv
http://www.nytimes.com/2005/06/05/magazine/05FREAK.html?pagewanted=all&_r=0
täs ois pari linkkii ennenku unohan koko homman! hauskaa pääsiäistä kaikille! :P
"It took several months of repetition for the capuchins to learn that they could exchange such a token for fruit. After they understood this, each monkey was given 12 tokens to decide on how to spend it in her best interest on food valued at different prices." höhöm.. siis ei aivan heti oppineet, toisin ku sanoin. mut kuiteskin hauska jutska tää. :P
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