Crown-of-thorns starfish are found on coral reefs throughout the Indo-Pacific region. These echinoderms, which can grow as large as 15.75 inches (40 cm) in diameter, are covered with thorny spines that release a neurotoxin capable of causing pain, nausea, and swelling in humans. They are voracious predators and are partly responsible for the destruction of coral reefs; a crown-of-thorns can consume as much as six square meters of reef annually. What sea creatures prey on these starfish? Discuss