Researchers studying wild chimpanzees in Boé National Park, Guinea-Bissau focus on a long-running behavior in which male chimpanzees throw rocks at the same trees over many years. Accounts from field coverage describe trees with visible, accumulated scars and piles of stones gathered at their bases, suggesting the activity persists rather than occurring as a short-term or random event.
The reporting and related research emphasize that the behavior is observed in the savanna-woodland environment of Boé as scientists travel into remote areas to document stone-throwing patterns. Researchers say they hike deep into the habitat to study how and why certain trees become repeatedly targeted.
One outlet also highlights that Boé’s habitat faces growing pressure from industrial mining, framing the study within broader concerns about potential impacts on chimpanzee behavior and survival in the region. Together, the sources present a consistent picture: researchers are investigating a distinctive, repeatable behavior by male chimpanzees, in a landscape where environmental change is an active concern.
