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== Copulation ==
 
== Copulation ==
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* Male initates courtship by moving his body over the female and rubbing his tail against her.
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* If female is receptive, she dilates her cloaca and raises her tail.
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* Copulation lasts 2-20 hours.
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* During copulation one hemipene is evaginated and inserted into the female cloaca.
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* Hemipene has spines and ridges that enable it to remain in the cloaca for a long period of time.
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* Hemipene is withdrawn at the end of copulation by contraction of the retractor muscle.
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* During multiple mating, the male can use the left and right hemipene alternately.
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