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Fish can exhibit mutualistic relationships, like the cleaner fish that remove parasites from larger fish.
The butterflyfish has a thin, flat body adapted for maneuvering around coral reefs.
Fish can have different skin textures, including smooth, rough, and slimy.
The fish's heart pumps blood to the gills for oxygenation.
Fish can be found in diverse habitats, from coral reefs to polar seas.
The surgeonfish has sharp spines on its tail for defense.
Fish can have different feeding habits, including filter feeding, predation, and scavenging.
The wrasse can change sex from female to male during its lifetime.
Fish can have sensory adaptations, like the ampullae of Lorenzini in sharks for detecting electric fields.
The piranha is known for its sharp teeth and aggressive feeding behavior.
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