Humans can recognize and understand #chimpanzee and #bonobo gestures
https://phys.org/news/2023-01-humans-chimpanzee-bonobo-gestures.html
"Humans retain an understanding of gestures made by other great #apes, even though we no longer use them ourselves, according to a study by Kirsty E. Graham and Catherine Hobaiter at the University of St Andrews, Scotland, publishing January 24 in the open access journal PLOS Biology.
Researchers tested people's understanding of the 10 most common gestures used by chimpanzees (Pan #troglodytes) and bonobos (Pan #paniscus) using an online game. Over 5,500 participants were asked to view 20 short videos of ape gestures and select the meaning of the gesture from four possible answers."
Here's the direct link to the test
https://research.sc/participant/login/dynamic/505CF355-CEF5-44ED-B2F1-2CBA484BD2FA