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Home / World / Macaques in Bali temples can find expensive items to steal and blackmail food

Macaques in Bali temples can find expensive items to steal and blackmail food



(CNN)— If new research on the behavior of primates is to be conducted, in fact, the well-known term “cheeked monkey” has a certain basis.

Research has found that adult wild long-tailed macaques are very smart and can understand which items are of the highest value to tourists, such as electronic items, and will only release them after they receive food that they think has corresponding value.

The author said that this behavior showed an “unprecedented economic decision-making process”

; among the monkeys observed in the study.

Understanding of economics

Scientists from the University of Lethbridge in Canada and Udayana University in Indonesia have observed that, in addition to being able to “use objects as a symbolic tool to request specific food rewards”, monkeys’ bartering ability also increases with age. To grow and improve successfully. And experience.

According to this group of authors, “There is a clear behavioral correlation between value-based token ownership and the quantity or quality of food rewards rejected and accepted by sub-adult and adult monkeys, while older monkeys “preferentially” choose higher value article.

The study was released on Monday and took 273 days from 2015 to 2016, and further observations were made in 2019.

The scientist photographed the monkeys gazing at the tourists, then approached them unabashedly, took an object, and then walked aside to wait for a suitable sacrifice.

According to the study, adult monkeys have accumulated “several food rewards before returning the tokens” when the item is of high value, and are “more likely” to accept “not much favorite food rewards” in exchange for lower value article.

This group of authors said: “For Uluwatu macaques, looting tokens and exchange/reward exchanges are challenging tasks. These macaques reveal an unprecedented economic decision-making process,” the authors said.

“This spontaneous, targeted, universal, cross-generational, learned and socially influenced approach may be the first example of a free-range animal culturally safeguarding the token economy.”


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