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With its radiant color and plant-like shape, the sea anemone looks more like a flower than animal. More specifically, the sea anemone is formed quite like a flower for which is named, with body like a stem and tentacles like petals in brilliant shades; blue, pink, green and red. Its diameters vary from about six millimeters in some species to more than ninety centimeters in the giant verities of Australia. Like corals, hydras and jelly fish, sea anemones are coelenterates. They can move slowly, but more often they attach the lower part of their cylindrical bodies to rocks, shells or wharf pilings.
The upper and end of the sea anemone has a mouth surrounded by tentacles which the animal uses to capture its food. Stinging cells in the tentacles throw out tiny poison threads that paralyze other small sea animals. The tentacles then drag this prey into the sea anemone's mouth.The food is digested in the large inner body cavity. When disturbed, a sea anemone retracts its lump on a rock. Anemones may reproduce by forming eggs. dividing in half or developing buds that grow and break off as independent animals.