Robyn Nakano and Ammie Kalan write that chimpanzees in West Africa exhibit an unusual, potentially cultural behavior known as _accumulative stone throwing_ by repeatedly hitting specific trees with rocks. These sites can remain active for over ten years and may serve functions such as territorial signaling, communication, or symbolic marking. Researchers are currently using camera traps and audio recordings to study the social context of these displays to better understand primate culture and human evolution.
- This behavior has only been observed in four chimpanzee groups in West Africa so far.
- The act is often accompanied by "pant hooting" (a loud vocal signal) and "buttress drumming" (hitting hands and feet against the tree).
- Bauxite mining poses a threat to these habitats, potentially leading to the loss of such unique primate material culture.
- This behavior has only been observed in four chimpanzee groups in West Africa so far.
- The act is often accompanied by "pant hooting" (a loud vocal signal) and "buttress drumming" (hitting hands and feet against the tree).
- Bauxite mining poses a threat to these habitats, potentially leading to the loss of such unique primate material culture.
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