Crown of Thorns. Native to the Indo-Pacific region, the crown-of-thorns starfish plays a vital ecological role in maintaining the diversity and delicate balance of the reef, as it feeds on the fastest growing corals, allowing slower growing coral species to form colonies. But when the poisonous starfish’s population booms to plague proportions, it is a significant danger to coral. Manual control of crown-of-thorns starfish, using an injection of approved chemical solutions, has occurred on the Great Barrier Reef since the 1980s. Please be careful and do not touch this beautifull but poisonous creature.
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