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There are more than 3000 species of earthworms in the world and only some of them are suitable for vermiculture – vermicomposting. Earthworms can be separated into three major groups based on their feeding and burrowing habits: anecic, endogeic, and epigeic. Anecic species or the deep-burrowing earthworm species, inhabit more or less permanent burrow systems …
burnabyredwigglers 