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Two monkeys were paid unequally

Cucumber or grapes? What happens when two monkeys do the same task but get 'paid' in different ways? Watch this funny video to find out how monkeys react to inequality.

Do the preparation task first. Then watch the video and do the exercises. You can also read the transcript.



Language level

Intermediate: B1


I don’t like a chimp. ;|

Dear Team,
I think in Task 1, seventh line, according to in the video reactions of the first monkey, the answer should be the''True''one. I mean, firstly we see this monkey giving back the rock easy, without any other reaction.I think that her testing the rock against the wall it occurs the fact that the other fellow takes grapes instead of cucumbers,so ''she is so angry'' as the test says. Otherwise this reaction of her doesn't make any sense.

Hello nikoslado

When we wrote that question, we were following what the researcher says, which is 'She tests a rock now against the wall', which suggests that the purpose of this action was to confirm that the rock was indeed a rock (and not some trick). I think it's fair to say that she is angry, but 'so angry' seems a little too extreme, which is why we marked that question as False.

Thanks for your input.

All the best


The LearnEnglish Team

Compared with human beings, this experiment may suggest that there's a difference between a kid raised as an only a child and that with siblings who are close in age.
Well... a hierachy may have a good reason in a society of human beings (monkeys)!?

Would you explain this(the food preferences of my capuchin monkeys correspond exactly with the prices in the supermarket)
I didn't get the whole idea

Hello fidaasiddig

It means that the monkeys' preference for grapes over cucumber is similar to the difference in prices in the supermarket -- that is, grapers are more expensive (more preferred) than cucumber. This is not an important observation in this video.

All the best


The LearnEnglish Team

It's because the reaction between monkeys and humans is the same when there is unequal reward for equal work.

I guess, there are many similarities between humans and monkeys. Monkeys among animals were very similar to humans.

In my point of view, monkey is the animal which has the closest brain with human. From that experiment, we can make hypotesis that human perhaps make a similiar strong reaction to inequaty, or may be stronger because human has a bigger brain than monkey, or may be smaller reaction because human has an experience to control emotion.

Basically, we as human, having similar response and reaction toward inequality. Except that human can choice whether to control the anger or eaten by the anger. Here it is where anger management is needed :)