MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY MATTHEW OLDFIELD / SCIENCE PHOTO LIBRARY
Clark's anemone fish (Amphiprion clarkii) amongst the tentacles of its host sea anemone. This fish lives in a symbiotic (mutually beneficial) relationship with the anemone. Slime on the body of the fish prevents the stinging cells on the anemone from harming it. The anemone fish lives, lays its eggs and feeds under the protection of its host. The anemone in turn receives morsels of food discarded by the fish, and is cleaned of parasites. Photographed off Mabul, Malaysia.
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