Definitions for "Earthworms"
Are very important soil organisms. Earthworms feed on animal and plant residues and on most deciduous leaves but not on waxy and resinous conifer needles. They aerate and stir the soil, which allows better water infiltration and easier root penetration.
Very important in aerating and fertilizing the soil.
Animals of the Lumbricidae family that burrow and live in soil. They mix soils with plant residues, aerate soil and leave behind nutrient rich casts.