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- Earthworm - Wikipedia
Earthworm populations depend on both physical and chemical properties of the soil, such as temperature, moisture, pH, salts, aeration, and texture, as well as available food, and the ability of the species to reproduce and disperse
- Earthworm | Annelid, Burrowing Soil Fertility | Britannica
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 species and 13 introduced species (from Europe) occur in the eastern United States, L terrestris being the most common
- Earthworm - Extension at the University of Minnesota
Earthworms are divided into three main groups by where they live within the soil: leaf litter dwellers, soil dwellers and deep burrowers Leaf litter dwellers are reddish-brown, small and usually less than 3 inches long when mature Soil dwellers live in the top 20 inches of soil
- Earthworms - Facts, Diet Habitat Information - Animal Corner
Earthworms help to fertilise the soil by bringing nutrients closer to the surface Earthworms are widespread in Britain and Europe They have been introduced to most parts of the world They live in soil at depths of up to 2 metres and feed on decaying organic matter in the soil
- Earthworm - Types, Anatomy, Diet, Habitat, Lifespan, Life Cycle
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 anchoring to soil These animals have a nearly cosmopolitan distribution, found on all continents except Antarctica
- Earthworm Animal Facts - Lumbricina - A-Z Animals
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
- Earthworms - National Wildlife Federation
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 channels and make holes that aerate soil and improve drainage Earthworms don’t have lungs; they breathe through their skin
- Earthworm | National Geographic
Learn all you wanted to know about common earthworms with pictures, videos, photos, facts, and news from National Geographic
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