Behaviour study shows rats know how to repay kindness
Wednesday, February 25, 2015 - 11:00
in Psychology & Sociology
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 another? A paper by Dolivo and Taborsky shows that Norway rats will only give as good as they get.