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Worm Wisdom: Seven facts about Earthworms

By Heather 12 years ago



Here are some facts about earthworms:


  • Earthworms (Lumbricus terrestris) (also known as lob worms or garden worms) are nature’s ploughs and are crucial for soil aeration. In an acre of land between 16,000-30,000 lbs (7,200-13,500kg) of soil passes through earthworms and is deposited on the surface each year. No wonder archaeologists are so good at digging!


  • How do worms travel? No, not on the underground, but by using their complex muscle system and hairs, called setae.


  • Earthworms do not have teeth, but use a gizzard to grind up pieces of food.


  • Worms don’t have eyes (except in cartoons!), but are sensitive to light.


  • Earthworms don’t have lungs, but instead “breathe” through their skin as long as it stays moist.


  • Earthworms are hermaphrodites ie their bodies contain both male and female reproductive organs.


  • Not content with one heart, earthworms have no fewer than five.