Straight Line of the Day: Causes of the Big Chimpanzee Rift…

Largest Known Wild Chimpanzee Community Breaks Apart After Decades of Unity

SciTech Daily | June 2, 2026 |  University of Texas at Austin

Wild chimpanzees in Uganda split into two separate communities and later engaged in deadly attacks against each other.

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For the first 20 years of research, the chimpanzee community remained united. Individuals regularly moved among flexible subgroups, known as “clusters,” while maintaining social bonds across the larger group. This fission-fusion social structure is common in chimpanzees, with members temporarily separating and later rejoining.

That pattern began to change in 2015, when researchers noticed growing division between the Western and Central clusters, which increasingly avoided one another.

18 Comments

  1. Dawn of the Planet of the Apes (2014)
    War for the Planet of the Apes (2017)
    Kingdom of the Planet of the Apes (2024)
    ……

    We thought it was us. But,it was the apes that blew it all up all along…

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