Chimpanzees in Uganda locked in vicious 'civil war', say researchers - BBC
- Chimpanzees in Uganda locked in vicious 'civil war', say researchers BBC
- Why these chimps have been at war for 8 years National Geographic
- Chimpanzees’ bloody ‘civil war’ may offer insight into human conflict The Times
- Scientists stunned as chimpanzees turn on friends in killing spree Reuters
- Wild chimpanzees recorded waging ‘civil war’ with coordinated attacks between two groups The Guardian