Soldiers produced by the parasitic flatworm Haplorchis pumilio (IMAGE)

University of California - San Diego

Soldiers produced by the parasitic flatworm Haplorchis pumilio

Caption

The parasitic flatworm Haplorchis pumilio produces non-reproductive soldiers (left) which have much larger mouths than their reproductively capable colony-mates (center). The soldiers use their mouths to defend the colony by producing powerful blasts of suction to kill their enemies (right). 

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Dan Metz

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