Behavior Glossary

Swelling

Description:
A conspicuous recurrent swelling of the ano-genital region of the female. In adult females the menstrual cycle lasts about 36 days. For 10-15 days the region swells to maximum size. Mating occurs during this time. During the rest of the cycle there is no swelling.

_{All illustrations for Behavior Glossary © David Bygott. Used by permission.}

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