Background Earthworms are found everywhere on the earth's surface, except the north and south poles, where it is too cold. They can be so tiny you can't see them without a microscope, or they can be several feet long. The earthworm has no head, no eyes, no teeth, and no antennae. Its body is made up of many ringlike segments. There is a swollen band, lighter in color that the rest of the body, and the front of the earthworms body.
Earthworms have both male and female reproductive organs.
They lay egg capsules that must be fertilized by another worm. Each egg capsule contains several baby worms, called wormlets. The wormlets come out of the capsules 3 to 4 weeks after the worm deposits the capsule near the soil surface. The worm is the gardener's best friend. Night and day worms are burrowing through acres of soil, swallowing soil as they go.