The PLoS One study, conducted by Duarte Viana and colleagues at the Instituto Gulbenkian de Ciência, Oeiras, Portugal, showed that rats were able to cooperate and adjust tactics depending on the strategy of their opponent, when put in a Prisoner’s Dilemma scenario. The results shattered the idea that only humans can solve the Prisoner’s Dilemma – and may bode a whole new approach to how we think about intelligence in other species.
via Amazing rats « Naturally Selected.
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