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Updated: 9/7/2020
Unknown Story
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  • Hydrozoa: A Story of Friendship and Science
  • Hey, Nathan, guess what I saw in the water yesterday...Hydrozoa!
  • Hey Paul, what's that?
  • Come on, I'll show you!
  • I found some here!
  • I don't see anything...
  • Good thing I brought my microscope!
  • Polys
  • *Nathan looks into the microscope*
  • Medusae
  • What on Earth was that Paul?!
  • That, my friend is Hydrozoa! Obelia polys and medusae to be exact.
  • Ophelia-poly-whattttt?
  • Obelia polys and medusae! They live a colonial lifestyle, the same way ants and bees live! Members of the colony have different jobs that are specialized and contribute to the success of the colony.
  • Tell me more.
  • TThe life of a hydrozoa starts off as a fertilized egg, that egg then develops into a sessile polyp, which means it does not move. The poly buds asexually and eventually buds off one or more medusae.
  • *Paul shows Nathan an image from his textbook*
  • In reproduction, new polyps can either be feeding polyps or reproductive polyps known as gonangia. When a gonangia buds, a medusae is produced. These medusae will then mature and produce their own eggs.
  • Wow Paul thanks! Who knew marine invertebrates were so cool!
  • Glad I could show a friend something new! Lets go back to the cafe for lunch.
  • So where do babies come from?
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