Fish
Animals that live in water, breathe with gills and swim with fins.
59 to explore · page 2 of 2
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Animal
Sockeye salmon
The sockeye salmon is a Pacific salmon that usually grows up in a lake, spends a few years in the North Pacific Ocean, and then returns to the place it hatched to lay its eggs. On the way home it turns bright red with a green head.
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Southern stingray
The southern stingray is a flat, diamond-shaped ray of warm western Atlantic waters, from the eastern United States through the Gulf of Mexico and the Caribbean to South America. It spends much of its time on sandy bottoms, finding buried crabs, shrimp and fish by smell, touch and tiny electric signals.
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Spot-fin porcupinefish
The spot-fin porcupinefish is a spiny relative of the pufferfish that lives on warm reefs all around the world. Its spines usually lie flat, but when it is threatened it swallows water and swells into a prickly ball. At night it uses a strong, beak-like mouth to crack open snails, hermit crabs and sea urchins.
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Spotted eagle ray
The spotted eagle ray is a ray that 'flies' through warm Atlantic waters by flapping its wide, wing-like fins. Its dark back is covered in white spots, its tail is long and whip-like, and its snout looks a bit like a duck's bill, which it uses to dig for clams and other shellfish.
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Swordfish
The swordfish is a huge ocean hunter with a long, flat bill like a sword. It swings its bill to slash at fish and squid, then eats them. It dives deep into cold, dark water by day, and a special 'brain heater' near its eyes keeps its brain warm. Grown-up swordfish have no scales and no teeth.
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Tiger shark
The tiger shark is one of the biggest sharks in the sea. Young tiger sharks have dark spots and stripes like a tiger, which fade as they grow. It eats an amazing range of food, and it travels long distances between warm and cooler seas.
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West Indian Ocean coelacanth
The West Indian Ocean coelacanth is a large, blue, spotted fish that lives in deep, rocky waters off eastern Africa. Its group was known only from fossils and thought to have died out about 66 million years ago, until a living one was found in South Africa in 1938.
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Whale shark
The whale shark is the largest fish in the world. This gentle giant swims through warm seas with its huge mouth open, filtering tiny plankton and small fish from the water, and every whale shark has its own pattern of pale spots.
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Yellow boxfish
The yellow boxfish lives inside its own box: a hard shell of bony plates joined together, with holes for its eyes, mouth and fins. Young boxfish are bright yellow with black polka dots, and big adults turn bluish. Its skin can release a toxic slime that protects it from predators, and it paddles slowly around reefs nibbling algae and small animals.
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Yellow tang
The yellow tang is a lemon-yellow surgeonfish of Pacific coral reefs, most common around Hawaii. It grazes on algae all day, which helps keep reefs from being smothered by seaweed, and it has a sharp white spine on each side of its tail for defense. It is one of the most collected fish for home aquariums.
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Yellowfin tuna
The yellowfin tuna is a large, torpedo-shaped fish of warm oceans around the world. It has a dark blue back, a silver belly and long, bright yellow fins. Yellowfin travel huge distances, dive deep to hunt fish and squid, and are important to fisheries all around the world.