Chimpanzees steal less fruit from friends and expect the same in return

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  Chimpanzees steal fruit less often from other chimpanzees they are friends with, according to research from the University of Berkeley.

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  The study found that the relationship between the victim and the thief affects both animals’ emotional reactions.

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  The research was published in the journal Evolution and Human Behavior.

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  The headline says chimpanzees also expect friends to behave the same way in return.

Who

Chimpanzees, in research by biologists at the University of Berkeley.

What

The study found that chimpanzees steal less fruit from friends and expect the same in return.

When

The article was published on October 11, 2026. The study date is not stated.

Where

Not stated.

Why

The article says the relationship between the victim and the thief affects whether fruit is stolen and the animals’ emotional reactions.

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