An earthworm is a soil -dwelling terrestrial invertebrate that belongs to the phylum Annelida. The term is the common name for the largest members of the class (or subclass, depending on the author) …

Dec 20, 2025 · Earthworm, any one of more than 1,800 species of terrestrial worms of the class Oligochaeta (phylum Annelida)—in particular, members of the genus Lumbricus. Seventeen native …

Earthworms improve soil health, structure, and fertility. Learn about their biology, benefits, and how to boost earthworm activity in your garden.

Earthworms are vital to soil health and to plants growing in it because they transport nutrients and minerals from below to the surface via their waste. An earthworm can eat up to a third of...

Sep 1, 2025 · Earthworms, recognized as keystone species and ecosystem engineers, constitute the largest portion of animal biomass in soils and serve as vital indicators within the soil quality-health …

Oct 31, 2025 · Earthworms are a group of terrestrial annelids that constitute the suborder Lumbricina. They are characterized by an elongated, segmented body equipped with bristle-like hair for …

Earthworms are harmless, often beneficial residents of the soil. Earthworms breakdown dead and decaying organic matter into rich humus soil, thereby supporting plant growth. They also dig tiny …

Jul 31, 2025 · At first glance, the earthworm is an unassuming biological machine. Its body, moist and segmented, ripples through the soil without limbs, eyes, or lungs. But this simplicity hides a …

Earthworms are more than just fish bait. They are the main contributors to enriching and improving soil for plants, animals and even humans. Earthworms create tunnels in the soil by burrowing, which …

May 27, 2024 · There are about 180 species of earthworm in the United States and Canada, and about 60 of them are invasive. You can check out more incredible facts about earthworms at this link.