Earthworms

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Science extra credit project.

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Earthworms

  1. 1. Ryan Kollmann and Michael Seehusen present Earthworms
  2. 2. Specific Classification <ul><li>Kingdom: Animilia
  3. 3. Phylum: Annelida
  4. 4. Class: Clitellata
  5. 5. Family: Lumbricadae
  6. 6. Order: Haplotaxida
  7. 7. Genus: Lumbricus
  8. 8. Species: L. terrestris </li></ul>
  9. 9. Physical Characteristics <ul><li>Can measure up to 6 meters
  10. 10. Look like a tube inside of a tube
  11. 11. The outer layer is made up of a series of circles wrapped around the body
  12. 12. The inner layer of muscle runs along the length of the body
  13. 13. Food enters in the mouth and exits out the anus </li></ul>
  14. 14. Habitat <ul><li>Main habitat is soil
  15. 15. Decaying plant matter or manure
  16. 16. Decaying conifer logs
  17. 17. Mud near streams </li></ul>
  18. 18. What it Eats <ul><li>They don't eat dirt, like many people believe
  19. 19. Earthworms eat decaying plant and animal matter and they usually swallow some soil with it
  20. 20. The soil passes right through and exits as castings
  21. 21. The decaying matter is what earthworms actually need for nutrients and energy </li></ul>
  22. 22. Reproductive Information <ul><li>Hermaphrodites, cannot fertilize themselves
  23. 23. Mating pair overlap front ends
  24. 24. Earthworms are hatched in cocoons for 30 to 60 days
  25. 25. Babies are born fully grown except for lack of sex structures
  26. 26. Average life span is 4-8 years </li></ul>
  27. 27. Enemies <ul><li>Snakes, birds, moles, toads and even foxes are known to eat earthworms
  28. 28. Beetles, centipedes, leeches, slugs and flatworms also feed on earthworms
  29. 29. Some types of mites parasitize earthworm cocoons or the worms themselves </li></ul>
  30. 30. Earthworms and Humans <ul><li>Converting organic matter into rich humus
  31. 31. Keeps soil structure open by burrowing
  32. 32. Humans often kill them for recreational activities such as fishing
  33. 33. Many worms are killed either accidentally or for no real purpose
  34. 34. While this may happen frequently, the
  35. 35. species is not endangered </li></ul>
  36. 36. Interesting Facts <ul><li>Have been kept alive for 6 years, but in the wild probably live two years at the most
  37. 37. Do not have lungs, breathe through their skin, and can live under water for a while;
  38. 38. Do not come to the surface during rain to escape drowning, but rather to find a mate since their mobility is much better on wet ground
  39. 39. Lack eyes but are light sensitive </li></ul>
  40. 40. Facts cont. <ul><li>Can detect the motion of a robin (that can hear the earthworm in its burrow)
  41. 41. May survive being frozen if the freeze is not too rapid </li></ul>
  42. 42. Pictures
  43. 43. THE END

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