The Conversation

Behavioural study shows that rats know how to repay a favour

25-02-2015 Author: The Conversation

"Remember, we're all in this together."Kuttelvaserova Stuchelova/Shutterstock

If I scratch your back and you scratch mine, then we’re both better off as a result – so goes the principle of reciprocity, one of the most popular explanations for how co-operative behaviour has evolved. But what if one partner provides a better service than...

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