Related topics: evolution

How did bird babysitting co-ops evolve?

The common understanding of evolution is that it is a battle for survival: one must either "scrunch or be scrunched," as Nicodemus Boffin, the Dickens' character, famously says.

Speed of animal evolution enhanced by cooperative behaviour

A study by scientists from the University of Cambridge has revealed how cooperative behaviour between insect family members changes how rapidly body size evolves – with the speed of evolution increasing when individual ...

The right thing to do: Why do we follow unspoken group rules?

How you dress, talk, eat and even what you allow yourself to feel - these often unspoken rules of a group are social norms, and many are internalized to such a degree that you probably don't even notice them. Following norms, ...

A 'guilt trip' is the road to cooperation

A new study has found that feeling guilty has a positive effect on our behaviour and leads to better cooperation - a discovery that could help people better manage everything from dog mess and energy bills to climate change.

Evolution of cooperation through longer memory

When we make a decision about whether or not to cooperate with someone, we usually base our decision on past experiences—how has this person behaved in the past?—and on future reciprocity—will they return the favor?—and ...

Fish cooperate for selfish reasons

Why do animals help raise offspring that aren't their own? A new study by an international team of researchers from Sweden, Canada and the UK shows that fish cooperate to raise another fish's offspring to reduce their own ...

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