Crown of thorns starfish are one of the sea creatures that caused damage to coral reefs. They fed on stony corals (Scleractinia). My friend Leo once joined a movement to collect this sea star somewhere in Samal Island because there was a population increase of this species in that area. Their consuming the reefs faster than it can regenerate itself.
Location: Sta. Maria/ Class: Asteroidea/ Species: Acanthaster sp.