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Abstract-We use emotional communication within a predator-prey game to evaluate the tradeoff between socioemotional behavior at individual-and species-scales. In this predator-prey game, individual predators and prey use emotion in their decision making, and communicate their emotional state with neighboring conspecifics. The model of emotion is based upon the somatic marker hypothesis. In comparing individual utility and population dynamics we find emotion is capable of both supporting species and individual gain. We suggest this type of dynamic may provide a mechanism for the emergence of altruistic behavior within a species under individual and/or group selection.

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