You would be surprised to find out that a jellyfishes tentacles actually have nothing to do with the way they move. Jellyfish move though the water using jet-propulsion or floating on ocean currents. Jet-propulsion is a form of movement. Here is a quick video which will give you an example of jet-propulsion:
What is happening in this video is,nt actually as complex as it looks. What you are seeing is the jellyfish squeezing it's body so that it can push jets of water from the bottom of its body to keep it moving. (I heard this from another site) You may understand this better if you cup you hand, as you were holding a small ball, then close your fingers. I will post some other cool videos and pictures of jellyfish on Friday.
I hope you have all been enjoying you projects and learning more about them and becoming fascinated at things you would never have guessed about them.
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