How Does The Crown-of-thorns Starfish Protect Itself?

How Does The Crown-of-thorns Starfish Protect Itself? Its ‘crown-of-thorns’ are the long sharp spines that cover its upper surface. What is more, the spines are coated with a saponin toxin, which causes irritation to puncture wounds (a considerable problem when working with the starfish). How do crown-of-thorns starfish protect themselves? The crown-of-thorns starfish is a