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The ocellaris clownfish (Amphiprion ocellaris) is a marine fish of the family Pomacentridae. Reaching about 110 mm (4.3 in) in length, the species may have a range of colors. After clownfish hatch, they initially reside near the surface. When they become juveniles, however, they move to the seafloor to find a host anemone, forming a symbiotic relationship in which they obtain protection in return for defense.Photograph: Nick Hobgood
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