PETER SCOONES / SCIENCE PHOTO LIBRARY PETER SCOONES / SCIENCE PHOTO LIBRARY
Clown anemonefish (Amphiprion percula) amongst the tentacles of a sea anemone. The clown anemonefish has a slime on its skin that prevents it from being stung by the anemone's poisonous tentacles. The fish and anemone have a symbiotic (mutually beneficial) relationship. The fish eats parasites on the anemone, and the anemone feeds on scraps of food left by the fish. Photographed on the Great Barrier Reef, Australia.
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