Scientists taught monkeys the concept of money

Scientists trained seven capuchin monkeys how to use money.  Instead of the dollar, however, a silver disc with a hole in its center was employed a means of currency for the capuchins. 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. Researchers observed that the monkeys could very well budget. Researchers then changed the market and put Jell-O at a lower price, to see if monkeys would buy less grapes and more Jell-O. They acted exactly like the current laws of economics dictate for humans as well.

They then taught them how to gamble, and saw they made the same irrational decisions a human gambler would make as well. It was also observed how one of the monkeys exchanged money to another for sex. After the act was over, the monkey which was paid immediately used it to buy a grape…

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