earthworms come in a seemly infinite varietyaround 6,000 species worldwide. lacking lungs or other specialized respiratoryorgans, earthworms breathe through their skin. one of the most familiar of them, the sortyou may see in your garden, is commonly known as the night crawler (it typically surfacesafter dark) each earthworm is both male and female, producingboth eggs and sperm. baby worms emerge from the eggs tiny but fullyformed. they grow sex organs within the first twoor three months of life and reach full size in about a year. the skin exudes a lubricating fluid that makesmoving through underground burrows easier
and helps keep skin moist. the earthworms digestive system is a tuberunning straight from the mouth, located at the tip of the front end of the body, to therear of the body, where digested material is passed to the outside.
species vary in what they eat, but by andlarge their devouring of fallen leaves and or soil allows the worms to move nutrientssuch as potassium and nitrogen into the soil. earthworm egg cases look like tiny lemons. thanks for watching our video.
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