Earthworm as bait food:
Earthworm is used as baits for fishing in many parts of the world. They are used as food by a large number of animals like frogs, moles, lizards, small insects etc.The earthworm makes the best food of fish in an aquarium and small animals in the laboratory.
Earthworm in medicines:
The Ayurvedic and Unani system of therapy suggests that earthworms are used to losing body weight, removing bladder stones, curing jaundice, and piles etc.
Earthworms in agriculture:
Earthworm's habit of burrowing makes the soil loose and porous. Their burrows permit the penetration of air and moisture in the porous soil.The faces of worms is a good manure.The secretions of worm enrich the soil by adding nitrogenous bases.
Earthworms in laboratories:
Earthworms are universally used for dissection in zoological laboratories, as they are easily obtained.