Crown of Thorns Star Fish
The Crown of Thorn sea star is found on coral reefs in the Indian and Pacific Oceans. It occurs in its greatest numbers on the Great Barrier Reef in Australia and around the islands of Indonesia. Many armed and covered in long, poisonous spines, the crown of thorns sea star has a forbidding appearance and reputation as one of the most destructive marine animals. These starfish feed voraciously on the living corals that make up tropical reefs. Congregating sometimes in tens of thousands, they move like a slowly advancing army over a reef, leaving behind a wasteland of destroyed coral that will take many years to recover.