• Question: Is there any animal that does not have a heart?

    Asked by anon-22966 to Amy, Sarah, Will on 21 Jun 2012.
    • Photo: Sarah Martin

      Sarah Martin answered on 21 Jun 2012:

      Hi cassie,

      Plenty! Insects, starfish, jellyfish etc – and of course all single-celled animals!

      🙂 Sarah

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