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Cercus


An earwig with large Cerci in the background
An earwig with large Cerci in the background


A Cercus is one of a pair of hair-like appendages that are attached to the end of the abdomen in some invertebrates, particularly insects.


They often serve as sensory organs, but they can also be used as weapons or copulation aids, or in some cases they are vestigial.


Associated Terms: Cerci

 


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