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New Study: Apes Feel More Optimistic After Hearing Laughter, a Shared Trait with Humans that Pre-Dates Language

Summary by goodgoodgood.co
A new study from Indiana University discovered that bonobos, humans’ closest living relatives, make similar vocalizations that share evolutionary origins with human laughter.

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This is the conclusion of a study by the journal Scientific Reports. An original work as the positive emotions of animals are largely under-educated in relation to the negative effects.

·Paris, France
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For centuries laughter has been considered exclusively human, linked to language and a sense of humor. But various scientific studies have shown that all great apes produce vocalizations remarkably similar to laughter. Vocalizations that share evolutionary origins with human laughter. An international study has gone one step further: bonobos show a more optimistic behavior after listening to the laughter vocalizations of their congeners. This fi…

Laughter isn't unique to humans. Bonobos even find it helpful to see life through rose-tinted glasses. This is the conclusion of a study published on June 26 in the journal Scientific Reports. Specifically, the researchers observed during an experiment that these monkeys tend to behave more optimistically after being exposed to the joyful outbursts of their peers. This is an original work, as positive emotions in animals are largely understudied…

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Liberation broke the news in Paris, France on Monday, June 30, 2025.
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