Bonobos in Congo form girl groups to fend off male aggression, study says

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Bonobos in Congo form girl groups to fend off male aggression, study says

This image provided by Martin Surbeck shows a female bonobo being groomed by another in the Congo in 2020. (Martin Surbeck/Kokolopori Bonobo Research Project via AP)

2025-04-24T15:01:50Z

                                       

NEW YORK (AP) — Female         data-gtm-enhancement-style="LinkEnhancementA" href="https://apnews.com/article/des-moines-birthdays-africa-paul-mccartney-anderson-cooper-53aca6d0bc542a6677112bd47cb8a646">bonobos find strength in numbers, teaming up to fend off males in the wild, a new study finds.

Along with         data-gtm-enhancement-style="LinkEnhancementA" href="https://apnews.com/article/ef90457fe64c4cb38eac5d883be7e910">chimpanzees, bonobos are among humans’ closest relatives. Scientists have long wondered why bonobos live in generally         data-gtm-enhancement-style="LinkEnhancementA" href="https://apnews.com/article/female-banded-mongoose-battle-for-mates-a2d32242a334395a401004e8f3ec6c3a">female-dominated societies since the males are physically bigger and stronger.

Three decades of observations in Congo — the only place the endangered bonobos are found in the wild — lend support to the idea of a sisterhood where female bonobos band together to assert their power.

These girl groups chased male bonobos out of trees, securing food for themselves, and females that grouped more ranked higher in their community’s social ladder, researchers found.

“It’s very clear that you don’t want to overstep as a male bonobo,” said study author Martin Surbeck from Harvard University.

Findings were published Thursday in the journal Communications Biology.

   
       
   

Female bonobos’ combined numbers seem to turn the tide against a male’s physical strength, Surbeck said. It’s one of the rare times such a strategy has allowed females to come out on top in the animal kingdom. Spotted hyenas similarly find power in groups.

Female bonobos linked up even when they didn’t have close ties, supporting one another against the males and cementing their social standing. The observations show how female bonobos work together to protect themselves from male violence, said biological anthropologist Laura Lewis with the University of California, Berkeley.

   
   
       
           
               
   
   


   
   

       
   

           
       
   
   

The findings support “the idea that humans and our ancestors have likely used coalitions to build and maintain power for millions of years,” Lewis, who was not involved with the research, said in an email.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

                                   
                               
                           

                           
                   
                   
                   

                   
                   
   
       
           
               
   
       
           
               
                   
   
       

   

   
       

   
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                ADITHI RAMAKRISHNAN
           
       

       
           
                Ramakrishnan is a science reporter for The Associated Press, based in New York. She covers research and new developments related to space, early human history and more.
           
       
       
       
           
               
                   
                       
   
   
       
           
       
   
   
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Source: Bonobos in Congo form girl groups to fend off male aggression, study says