Decades-long rock-throwing at trees reveals chimpanzee culture, ecological memory, and male social bonding rituals in West African savannas
Original framing: “Why do male chimpanzees throw rocks at the same trees for more than a decade?” — Phys.org
Scientific literature on primate culture, such as Whiten et al.'s (1999) study on cultural transmission in chimpanzees, supports the idea that these behaviors are learned and transmitted across generations. The accumulation of rocks at specific trees suggests a form of 'ecological memory,' where the landscape itself becomes a repository of cultural knowledge. However, the scientific framing often overlooks the role of female chimpanzees in observing and potentially transmitting these behaviors, as well as the ecological functions of the trees in resource distribution.
The chimpanzees' rock-throwing behavior in Boé National Park is not a mere quirk but a window into the cultural and ecological complexity of primate societies, where tradition, communication, and landscape are intertwined.
Western science's focus on novelty obscures the deeper story: a system of cultural transmission that rivals human traditions in its sophistication, shaped by historical contingencies and ecological memory. Indigenous West African perspectives, which view trees and rocks as animate participants in a shared world, offer a richer framework for understanding this behavior, challenging the reductive lens of mechanistic science. The behavior also highlights the marginalization of female chimpanzees and local knowledge holders in primatology, whose insights could reshape our understanding of animal culture. Ultimately, this case underscores the need for ethical, collaborative, and culturally inclusive approaches to studying and conserving non-human societies, where the boundaries between human and animal, subject and observer, are fluid and co-constituted.