Hallo @Weserdampfer

Es gibt eine neue Studie über Schimpansen. Wie sie Bäume als Kommunikationsmittel benutzen.
A recent study by behavioral biologists from Wageningen University & Research and the German Primate Research Center has uncovered a remarkable phenomenon among wild chimpanzees in West Africa: the use of stones to produce sound, presumably as a form of communication.

Over the course of a five-year field study, the research team collected video footage at five distinct locations within a nature reserve in Guinea-Bissau. This was made possible through the use of camera traps and with essential support from local field guides. In specific areas, a striking behavioral pattern was observed: adult male chimpanzees repeatedly struck stones against tree trunks, resulting in characteristic piles of stones at the base of these trees.

The study is published in the journal Biology Letters.
Was lernen wir daraus? Es geht dabei um Kommunikation über größere Distanzen: Stone Assisted Drumming.
Lead author Sem van Loon refers to this behavior as "stone-assisted drumming." "It appears to be related to the classic drumming with hands or feet on hollow buttress roots, which chimpanzees use to convey information over long distances or to display dominance," she explains.
In dicht bewaldeten Gebieten.
Van Loon suspects a different motivation behind this behavior. "It may be that these loud, low-frequency sounds are meant to carry further than typical within-group communication," she suggests. "The acoustic properties of a stone striking a tree make that feasible in densely forested areas."
Quelle: https://phys.org/news/2025-05-year-chimpanzees-stones-trees-communication.html

Das könnte auch das typische Bäume-Klopfen der Bigfoots erklären :)