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Brain Zone

Question: which side of a worm is the head and which side is the tail?

Asked by daisymarie2k11 to Damien, Suzi, Tim on 23 Jun 2011.

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2Short link http://ias.im/58.3416 | Comment on this question

  • Photo: Suzi GageSuzi Gage answered on 23 Jun 2011:

    Hi @daisymarie2k11
    Good question – it’s a shame Rachael has gone as she works with worms!
    Worms are different at either end – you can tell because they have a band around them close to the ‘front end’. But you’re right, it’s hard to tell.

    Apparently the best way to tell is tickle the middle, and see which end laughs ;)

    Hope this (the first bit, not the silly joke) helps!

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  • Photo: Tim FoskerTim Fosker answered on 23 Jun 2011:

    Hi @daisymarie2k11

    Great answer from Suzi! Really made me laugh :-D
    There is a great picture of an earthworm outline on the ‘Nematode-Plant Expert Information System’ at UC Davis, showing the clittelum (the band close to the front end of the worm) that Suzi describes.

    http://plpnemweb.ucdavis.edu/Nemaplex/images/Annelida1.gif

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