• Question: Does a jelly fish have a brain?

    Asked by vincent to Damien, Rachael, Simon, Suzi, Tim on 21 Jun 2011.
    • Photo: Tim Fosker

      Tim Fosker answered on 21 Jun 2011:

      Hi @vincent

      No a jellyfish doesn’t have a brain or a central nervous system, but they have a net of connected nerves instead. I have a feeling you already knew that 🙂

    • Photo: Suzi Gage

      Suzi Gage answered on 21 Jun 2011:

      Hi @vincent
      Good question, and Tim’s answered it!
      🙂

    • Photo: Rachael Ward

      Rachael Ward answered on 21 Jun 2011:

      The worms I study are similar to jellyfish in that they dont have a brain, just neurons – 302 to be exact – someone counted them.

      Quite a lot of animals only have a system of neurons and nerves as they only perform very basic things like look for food, find food and then eat food so they dont really need brains in the same way that we do!

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