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Chimpanzees split and kill former groupmates in Uganda (Level A1) — person holding white and red love is love print signage

Chimpanzees split and kill former groupmates in UgandaCEFR A1

21 Apr 2026

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Adapted from U. Michigan, Futurity • CC BY 4.0

Photo by Mathias Reding, Unsplash

Level A1 – Beginner
2 min
73 words
  • Chimpanzees live in Kibale National Park, Uganda.
  • A large group later split into two groups.
  • One group attacked and killed many former friends.
  • The attacks began after rising aggression between subgroups.
  • The group split into two parts.
  • The groups then stopped meeting and breeding.
  • Researchers have followed them for many years.
  • Scientists were surprised by violence among former allies.
  • Long-term study helped show the change.
  • The study raises questions about social behaviour.

Difficult words

  • chimpanzee — a large wild ape that lives in Africa
    Chimpanzees
  • split — to divide into two or more parts
  • attack — to hurt or try to harm someone or something
    attacked, attacks
  • aggression — angry or violent behaviour toward other animals or people
  • breed — to produce young animals or have babies
    breeding
  • researcher — a person who studies animals or groups
    Researchers

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Have you ever visited a national park?
  • Do you think animals can be friends?
  • Would you like to watch animals for many years?

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