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Paper wasps (Polistes fuscatus) have highly individual facial markings, which they use to recognize one another. New research at the University of Michigan shows that the wasps benefit not only by being able to recognize others, but also by being recognizable themselves. CREDIT: Michael J. Sheehan

 



In nests with multiple queens, wasps fight to sort out the colony's dominance hierarchy. Experiments showed that easily-recognized wasps were less likely to be the targets of aggression than were look-alike wasps. CREDIT: Michael J. Sheehan

 

A paper wasp (Polistes fuscatus) on its nest. CREDIT: Michael J. Sheehan

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