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 PNG Conservation and Environment Protection Authority

Mu¨ llerian mimicry rings are remarkable symbiotic species assemblages in which multiple members share a similar phenotype. However, their evolutionary origin remains poorly understood. Although gene flow among species has been shown to generate mimetic patterns in some Heliconius butterflies,mimicry is believed to be due to true convergencewithout gene flowinmany other cases.We investigated the evolutionary history of multiple members of a passerinemimicry ring in the poisonous Papuan pitohuis.