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Lifestyle The New Sober Boom Getting Hooked on Quitting

Getting Hooked on Quitting

Education Liberal Arts Cuts Are Dangerous Is College Necessary?

Liberal Arts Cuts Are Dangerous

Is College Necessary?

Finance Dying Parents Costing Millennials Dear Gen Z Investing In Le Creuset

Dying Parents Costing Millennials Dear

Gen Z Investing In Le Creuset

Crypto Investing SEC vs Celebrity Crypto Promoters ‘Dark’ Personalities Drawn to BTC

Investing SEC vs Celebrity Crypto Promoters ‘Dark’ Personalities Drawn to BTC

SEC vs Celebrity Crypto Promoters

‘Dark’ Personalities Drawn to BTC

Reviews Lifestyle The New Sober Boom Getting Hooked on Quitting Education Liberal Arts Cuts Are Dangerous Is College Necessary? Finance Dying Parents Costing Millennials Dear Gen Z Investing In Le Creuset Crypto Investing SEC vs Celebrity Crypto Promoters ‘Dark’ Personalities Drawn to BTC

Lifestyle The New Sober Boom Getting Hooked on Quitting

Getting Hooked on Quitting

Education Liberal Arts Cuts Are Dangerous Is College Necessary?

Liberal Arts Cuts Are Dangerous

Is College Necessary?

Finance Dying Parents Costing Millennials Dear Gen Z Investing In Le Creuset

Dying Parents Costing Millennials Dear

Gen Z Investing In Le Creuset

Crypto Investing SEC vs Celebrity Crypto Promoters ‘Dark’ Personalities Drawn to BTC

Investing SEC vs Celebrity Crypto Promoters ‘Dark’ Personalities Drawn to BTC

SEC vs Celebrity Crypto Promoters

‘Dark’ Personalities Drawn to BTC

Is war central to human nature? Chimps can’t tell us everything

Outbreaks of violence between chimpanzees have sparked fierce debate online about the origins of war in humans

Published April 23, 2026 6:30AM (EDT)

For decades, the 200 Ngogo chimpanzees in Kibale National Park, Uganda, lived what seemed a calm and normal existence. Males and females hunted together, groomed each other and went on patrols through the forest. Within this large group, cliques were formed but they often intermingled and share territory, like something from a simian Pixar film. But in June 2015, something happened and the group split in two. Then, the violence started.

The scientists watching this schism aren’t sure why things became so belligerent. It started with members from one group chasing the other and prolonged periods of avoidance. As polarization increased, so did the aggression, eventually becoming lethal. Over the years, at least six adult males were targeted, followed by at least 17 infants that were killed.

What was surprising about these killings isn’t that chimpanzees are some sort of primate pacifists and these ones suddenly went rogue. Indeed, chimps have been documented killing each other before, but usually one-off in events rather than in conflict between distinct groups that were formerly united. What made this different is how........

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