该研究团队在已知的最大的野生黑猩猩群（泛穴居人）中报告了一种罕见的永久性裂变。通过30年的行为观察和网络分析，该团队描述了2015年从凝聚力到两极分化的转变，以及2018年两个不同群体的出现。在接下来的7年里，其中一个群体的成员发动了24次袭击，杀死了另一个群体中至少7只成年雄性和17只幼崽。这些发现表明，在缺乏通常被认为是人类战争所必需的文化标志的情况下，群体认同可以在其最亲近的亲属之间转变并升级为致命的敌意。
据了解，动物之间的领土冲突可以反映人类战争的各个方面，但内战，随着群体身份的变化，以前没有观察到。
附：英文原文
Title: Lethal conflict after group fission in wild chimpanzees
Author: Aaron A. Sandel, Yixuan He, Junpeng Ren, Yik Lun Kei, Kevin C. Lee, Isabelle R. Clark, Rachna B. Reddy, Jacob D. Negrey, Charles Birungi, Blessing A. Apamaku, Diana Kanweri, Davis Kalunga, Christopher Aliganyira, Sebastián Ramírez-Amaya, Phionah Nakayima, Raymond Katumba, Brian Kamugyisha, Daniela Acosta-Florez, Bas van Boekholt, Godfrey Mbabazi, Erone Akamumpa, Sharifah Namaganda, Alfred Tumusiime, Samuel Angedakin, Gesine Reinert, Oscar Madrid-Padilla, Mihai Cucuringu, David Wipf, Kevin E. Langergraber, David P. Watts, John C. Mitani
Issue&Volume: 2026-04-09
Abstract: Territorial conflicts in animals can inform aspects of human warfare, but civil war, with its shifting group identities, has not been previously observed. We report a rare, permanent fission in the largest-known group of wild chimpanzees (Pan troglodytes). Using 30 years of behavioral observations and network analyses, we describe a transition from cohesion to polarization in 2015 and the emergence of two distinct groups by 2018. Over the next 7 years, members of one group made 24 attacks, killing at least seven mature males and 17 infants in the other group. These findings indicate that group identities can shift and escalate into lethal hostility in one of our closest living relatives in the absence of the cultural markers often thought necessary for human warfare.
DOI: adz4944
Source: https://www.science.org/doi/10.1126/science.adz4944