Articles > Government magazines > Applied and Social Sciences magazines > Natural History articles > June 1998

Article: Annelids

Article from:
Natural History
Article date:
June 1, 1998
Author:
Copyright

Earthworms, a powerful force in terrestrial ecosystems, are so important that, late in his life, Darwin devoted an entire book to them. Earthworms are responsible for renewing the earthiness of soil (a combination of small flakes of rockderived minerals and organic materials in various states of decay). Adding nutrients to the soil as dirt passes through their guts, earthworms turn over the topsoil as well as aerate it as they emerge at night to leave their ...

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