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Rights: University of Waikato
Published 17 September 2009
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DR MILES LAMARE

Starfish also have nasty chemicals in them, which act as a chemical defence to predation, so something might try and bite it but they’ll spit it out because they don't taste very nice. And there’s one particular tropical species called the crown-of-thorns starfish, and if you were to touch it, you would get quite a nasty burn on your hand just through chemical defences.