An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. Earthworms are commonly found living in soil, feeding on live and dead organic matter. An earthworm's digestive system runs through the length of its body. It conducts respiration through its skin.
Various species of worms are used in vermiculture, the practice of feeding organic waste to earthworms to decompose food waste. These are usually Eisenia fetida (or its close relative Eisenia andrei) or the Brandling worm, commonly known as the tiger worm or red wiggler.
EARTHWORM : Pheretima posthuma. The earthworms are long cylindrical worms of brownish colour which live in burrows in moist earth particularly that contains decaying vegetation or humus. They are also common in agricultural fields where they increase the productivity of crops. The life span of earthworm is 3-10 years.