How do threadworms know it's night?

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Catherine Whitlock

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How do threadworms know it's night?
« on: 13/02/2009 11:49:01 »
Catherine Whitlock asked the Naked Scientists:
   
Threadworm infections are common in school age children.

The female lays her eggs at night at the opening to the anus. How does she know it's night time or is just that we notice the itching more then?!

What do you think?

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Offline Chemistry4me

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How do threadworms know it's night?
« Reply #1 on: 13/02/2009 23:10:51 »
She notices that you are warm and still?
« Last Edit: 13/02/2009 23:18:13 by Chemistry4me »