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    • Rights: University of Waikato
    Published 12 June 2012 Referencing Hub media
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    Longitudinal muscles run the length of the earthworm. When these muscles contract, earthworms become short and fat. Longitudinal muscles alternate with circular muscles to help earthworms move.

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      INTERACTIVE

      Inside of an earthworm

      The earthworm’s body is well adapted for life in the soil. Click on the labels to see images and learn more. Click the green button to see what’s on the outside of an earthworm.

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