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flag A new study reveals that foreign queen ants trick host colonies into killing their own queen using chemical mimicry and formic acid, marking the first known case of matricide induced by a parasite.

flag Scientists have discovered a new form of matricide in ant colonies where foreign queen ants infiltrate host colonies by mimicking their chemical scent, then use a substance—likely formic acid—to trigger worker ants to kill their own queen. flag This deceptive strategy, observed in species like Lasius orientalis and umbratus, marks the first documented case of a parasite causing offspring to murder their mother. flag Once the host queen is eliminated, the invader takes over, with workers accepting her as the new ruler and raising her offspring. flag The behavior, published in Current Biology, reveals a sophisticated use of chemical manipulation never before seen in any animal species and highlights how social insects can be exploited through their reliance on scent-based communication.

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