The pale red garden earthworm is often called “nature’s plow.” That’s because an earthworm pushes through soft earth with the point of its head. If the soil is hard, the worm eats its way through, forming interconnected burrows, some several feet deep.
Burrows loosen the soil, admitting air and water and helping roots grow. A single acre of cultivated land may be home to as many as 500,000 earthworms, each making the soil a better place for plants.
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