The crown of thorns starfish (acanthaster planci) preys upon hard coral polyps and is one of the largest starfish in the world. I saw this one at a reef in Cocos Island, Costa Rica.
The crown of thorns starfish (acanthaster planci) preys upon hard coral polyps and is one of the largest starfish in the world. I saw this one at a reef in Cocos Island, Costa Rica.