Chimps Appear to Treat Others' Wounds Using Insects

The practice, which hasn’t been previously observed among nonhuman animals, may be a display of empathy.

Written byNatalia Mesa, PhD
| 2 min read
Two chimps, one grooming the other on the chin
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Researchers have spotted chimpanzees capturing insects, licking them, and applying them to other chimps’ wounds. The insects likely serve as a healing salve, the scientists speculate. And though other animals such as elephants and cats have been known to self-medicate, this is the first time nonhuman animals have been reported to apply medicines to others.

The behavior was first captured in 2019 by a volunteer who, while working at the Ozunga Chimpanzee Project in Loango National Park, West Africa, watched a female chimpanzee apply an insect to her son’s injured foot, according to Science Focus. Scientists working at the Ozouga Project documented 22 further instances of chimps applying insects to open wounds over the next 15 months and published their findings today (February 7) in Current Biology.

The researchers don’t know what insects the chimpanzees are using or how they may help heal a wound, reports The New York Times, ...

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    As she was completing her graduate thesis on the neuroscience of vision, Natalia found that she loved to talk to other people about how science impacts them. This passion led Natalia to take up writing and science communication, and she has contributed to outlets including Scientific American and the Broad Institute. Natalia completed her PhD in neuroscience at the University of Washington and graduated from Cornell University with a bachelor’s degree in biological sciences. She was previously an intern at The Scientist, and currently freelances from her home in Seattle. 

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