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earthworm

earthworm - Click to enlarge
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Annelid worm of the class Oligochaeta. Earthworms are hermaphroditic and deposit their eggs in cocoons. They live by burrowing in the soil, feeding on the organic matter it contains. They are vital to the formation of humus, aerating the soil and levelling it by transferring earth from the deeper levels to the surface as castings.

© RM 2012. Helicon Publishing is division of RM.


 
 

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Red and white have been Austria's national colours for over 800 years. Effective date: 27 April 1984.

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