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Exploring how community-based social norms evolve

Cooperation is a guiding principle of everyday life. It's as simple as following the rules of the road when driving or holding a door for a stranger; cooperation is a fundamental aspect of human societies and has long intrigued ...

Examining instances when play can be painful

Beyond pleasure, is there emotional depth to play? Aaron Trammell, a researcher in the Donald Bren School of Information and Computer Sciences, answers this and related questions in a new book he wrote that examines differences ...

What 'alien' languages can teach us about real ones

You can learn a lot about an animal by how it communicates. Birds tweet melodies to attract mates and defend their territory. Dogs befriend each other with wagging tails and smelly pheromones. Even plants communicate by diffusing ...

Guess who? Chimpanzee faces reveal family relationships

Researchers from the University of St Andrews have shown for the first time that not only do wild chimpanzees tend to look like their family members, but also some relationships are easier to detect than others.

Why do we learn to reward cooperation?

Researchers at the Max Planck Institute in Plön show that reputation plays a key role in determining which rewarding policies people adopt. Using game theory, they explain why individuals learn to use rewards to specifically ...

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