Coral reefs provide and important source of food and income to local Thais. Acoral polyp is a soft, almost transparent animal that builds its skeleton outside its body. Polyps feed at night by Extending their tentacles, each of which is armed with a series of stinging cells that paralyse any passing prey. The moray eel is a key predator in the reef ecosystem; it hides in crevices. lunging out to seize unsuspecting fish.
Coral Reefs and Polyps