Should I stay or should I go with them?

Foraging—the seeking, detecting, and acquiring of resources, typically food—is one of the most common and important behaviors of mobile organisms, which have consequently evolved to be very good at it. The exploration-exploitation trade-off describes a fundamental tension in foraging behavior between looking for new locations where resources may be discovered versus harvesting resources from a location where they have already been found, but this characterization is incomplete. On page 475 of this issue, Schakowski et al. (1) report that social information also shapes the foraging of humans. They tracked ice fishers competing on frozen lakes in Eastern Finland and found that their decisions involve a well-understood foraging strategy for making the exploration-exploitation trade-off. However, these foragers also use a form of socialtaxis—approaching and staying near other ice fishers—which invites a reconsideration of how foraging and its cognitive faculties have evolved to include social information. [ABSTRACT FROM AUTHOR]